Why field rheostat is kept in minimum position while armature rheostat at maximum position?

Why motor are rated as KW while transformer rated in kVA?
Answer : Motors are rated in **kW (kilowatts)**, while transformers are rated in **kVA (kilovolt-amperes)** because of the different ways they handle electrical power and the factors affecting their ... whereas a transformer's capacity is related to its ability to transfer both real and reactive power....

View solution

0 like 0 dislike

5 views 1 answer

in Electrical Engineering

At what point does the maximum total power occur?

View solution

0 like 0 dislike

3 views 0 answers

in Electrical Engineering

An industrial consumer charged with the scheduled tariff of Rs.250 /kVA per month for maximum demand and 150 paisa per unit consumed for load factor of 60% and 80%. Find overall cost per unit at i) unity P.F. ii) 0.9 P.F. consider maximum demand of 50 kVA.
Answer : To solve this, we need to calculate the total cost of electricity consumption for an industrial consumer, considering the maximum demand (MD), load factor (LF), and power factor (PF) at ... tariff is based on kVA, and the load factor and total consumption determine the cost more significantly....

View solution

0 like 0 dislike

5 views 1 answer

in Electrical Engineering

A 3 φ I.M. has synchronous speed of 250rpm and 4% slip at full load. The rotor has a resistance of 0.02Ω/ph and stand still reactance of 0.15Ω/ph. Calculate i) The speed at which max torque is developed. ii) The ratio of maximum to F. L. torque. iii) The ratio of maximum to starting torque.

View solution

0 like 0 dislike

3 views 0 answers

in Electrical Engineering

Calculate speed of motor when delivery maximum voltage. Also calculate the resistance to be added to achieve 3/4th of maximum torque at time of starting.

Calculate speed of motor when delivery maximum voltage. Also calculate the resistance to be added to achieve 3/4th of maximum torque at time of starting.
Answer : To calculate the speed of the motor when delivering the maximum voltage and the resistance to be added to achieve 3/4th of maximum torque at the time of starting, we need to break down the ... resistance. If you have specific values for these parameters, I can help you calculate the exact numbers....

View solution

0 like 0 dislike

6 views 1 answer

in Electrical Engineering

What will happen if a lead acid battery is kept in discharged condition for a long time?

View solution

0 like 0 dislike

6 views 0 answers

in Electrical Engineering

Why is my battery not charging while charging?

View solution

0 like 0 dislike

1 view 0 answers

in Electrical Engineering

Why are primary cells such as voltaic cells not rechargeable while secondary cells such as the lead storage cells rechargeable?

View solution

0 like 0 dislike

1 view 0 answers

in Electrical Engineering

What is the formula for electric field intensity at origin?

View solution

0 like 0 dislike

1 view 0 answers

in Electrical Engineering

What is the relationship between electric field at A point and its distance from A short dipole?

View solution

0 like 0 dislike

1 view 0 answers

in Electrical Engineering

At what point is the electric field strongest?

View solution

0 like 0 dislike

0 views 0 answers

in Electrical Engineering

At which point is the electric field intensity zero due to an electric dipole?

At which point is the electric field intensity zero due to an electric dipole?
Answer : The electric field intensity due to an electric dipole is zero at specific points, which depend on the position relative to the dipole. 1. **Along the axial line (the line passing through both charges of ... **axial line** doesn't have a point where the electric field is zero, except at infinity....

View solution

0 like 0 dislike

1 view 1 answer

in Electrical Engineering

What is the relation between electric field at a point and its distance from short dipole?

What is the relation between electric field at a point and its distance from short dipole?
Answer : The electric field at a point due to a short dipole depends on both the distance from the dipole and the orientation of the point relative to the dipole. For simplicity, let's assume that the ... , and its magnitude and direction depend on the orientation of the point relative to the dipole axis....

View solution

0 like 0 dislike

3 views 1 answer

in Electrical Engineering

At which location is the electric field strength the greatest?

View solution

0 like 0 dislike

4 views 0 answers

in Electrical Engineering

Why is it called a rheostat?

View solution

0 like 0 dislike

3 views 0 answers

in Electrical Engineering

Why is it called armature?

Why is it called armature?
Answer : The term "armature" comes from the Latin word *armatura*, meaning "armor" or "equipment." In the context of electrical machines like motors and generators, the armature is the part that ... the machine that "carries" or "arms" the process of converting electrical energy or mechanical motion....

View solution

0 like 0 dislike

7 views 1 answer

in Electrical Engineering

What is the armature winding made up of and why?

View solution

0 like 0 dislike

4 views 0 answers

in Electrical Engineering

What are the different losses that occur in thyristor while operating?

View solution

0 like 0 dislike

2 views 0 answers

in Electrical Engineering

State any four IE Rules to be followed in respect of safety while working on electrical installation system.

View solution

0 like 0 dislike

2 views 0 answers

in Electrical Engineering

List the factors to be considered while designing feeders and distribution with their functions in brief.

List the factors to be considered while designing feeders and distribution with their functions in brief.
Answer : When designing feeders and distribution systems in electrical engineering, several key factors need to be considered to ensure efficient and reliable power delivery. Below is a list of these ... reliable, efficient, and safe electrical supply to consumers while minimizing costs and system failures....

View solution

0 like 0 dislike

4 views 1 answer

in Electrical Engineering

How to calculate maximum electric field strength?

How to calculate maximum electric field strength?
Answer : To calculate the maximum electric field strength, you need to know the context of the problem, as electric field strength can be influenced by various factors such as charge distribution, geometry, and ... depending on the scenario. Let me know if you need more help with a particular example!...

View solution

0 like 0 dislike

7 views 1 answer

in Electrical Engineering

Where is electric field maximum?

View solution

0 like 0 dislike

2 views 0 answers

in Electrical Engineering

What is the maximum electric field intensity?

View solution

0 like 0 dislike

4 views 0 answers

in Electrical Engineering

What is the maximum electric field strength?

What is the maximum electric field strength?
Answer : The maximum electric field strength depends on the material or environment you're talking about, but in general, there isn't a single "maximum" value because electric fields can vary greatly ... field strength in a specific context, like in a capacitor, electrical circuits, or atmospheric phenomena?...

View solution

0 like 0 dislike

5 views 1 answer

in Electrical Engineering

What is maximum field strength?

View solution

0 like 0 dislike

2 views 0 answers

in Electrical Engineering

What is the minimum salary in Google?

View solution

0 like 0 dislike

2 views 0 answers

in Electrical Engineering

How does a quadrature encoder measure position and direction?

How does a quadrature encoder measure position and direction?
Answer : A quadrature encoder is used to measure the position and direction of a rotating object. It typically has two output channels, called **A** and **B**, which provide signals that ... difference allows the quadrature encoder to track both the position and the direction of the rotation accurately....

View solution

0 like 0 dislike

1 view 1 answer

in Electrical Engineering

How does a quadrature encoder interface measure rotational position?

How does a quadrature encoder interface measure rotational position?
Answer : A **quadrature encoder** measures rotational position by using two signals, typically referred to as **A** and **B**, which are generated from a rotating disk with patterns (like ... pulses and analyzing their phase relationship, it can calculate both the direction and the position of rotation....

View solution

0 like 0 dislike

2 views 1 answer

in Electrical Engineering

How does a magnetic levitation system control object position?

View solution

0 like 0 dislike

1 view 0 answers

in Electrical Engineering

How does a quadrature encoder interface measure position?

View solution

0 like 0 dislike

0 views 0 answers

in Electrical Engineering

How does a capacitive position sensor work?

How does a capacitive position sensor work?
Answer : A capacitive position sensor works by measuring changes in capacitance, which is the ability of two conductive objects (like plates) to store electrical charge. Here's a simple breakdown of how it ... this change in capacitance into a measurable signal, which can then be used to determine position....

View solution

0 like 0 dislike

5 views 1 answer

in Electrical Engineering

Is position a vector or scalar?

Is position a vector or scalar?
Answer : Position is a **vector**. In physics, position refers to the location of an object in space, and it is described by both a magnitude (how far it is from a reference point) and a direction (the way to reach ... your location, like (3, 4), where "3" is the x-coordinate and "4" is the y-coordinate....

View solution

0 like 0 dislike

7 views 1 answer

in Electrical Engineering

What is BLDC and how it is used for position control?

What is BLDC and how it is used for position control?
Answer : **BLDC** stands for **Brushless DC Motor**. It is a type of electric motor that doesn't use brushes for commutation, unlike traditional DC motors. Instead, it uses an electronic controller ... and a controller, they can be used in applications where accurate, real-time movement control is required....

View solution

0 like 0 dislike

8 views 1 answer

in Electrical Engineering

Is rheostat used in fans?

View solution

0 like 0 dislike

2 views 0 answers

in Electrical Engineering

Which principle is used in rheostat?

Which principle is used in rheostat?
Answer : A **rheostat** works based on the principle of **variable resistance**. It is a type of **resistor** used to adjust the flow of current in a circuit by varying its resistance ... resistance. By increasing the resistance, the current decreases, and by decreasing the resistance, the current increases....

View solution

0 like 0 dislike

6 views 1 answer

in Electrical Engineering

What is an armature in a motor?

View solution

0 like 0 dislike

3 views 0 answers

in Electrical Engineering

What is armature reaction in DC machines?

View solution

0 like 0 dislike

2 views 0 answers

in Electrical Engineering

What is the best way to minimize the eddy current in an armature?

What is the best way to minimize the eddy current in an armature?
Answer : To minimize eddy currents in an armature, the key is to reduce the formation and flow of these currents, which typically arise due to changing magnetic fields in conductors. Here are a few effective ... ** are the two most common and effective methods to reduce eddy current losses in an armature....

View solution

0 like 0 dislike

6 views 1 answer

in Electrical Engineering

What is the best way of minimizing eddy currents in an armature?

View solution

0 like 0 dislike

3 views 0 answers

in Electrical Engineering

State any four advantages of having stationary armature in case of three phase alternator.

View solution

0 like 0 dislike

1 view 0 answers

in Electrical Engineering

What is the significance of lamination in the armature?

View solution

0 like 0 dislike

3 views 0 answers

in Electrical Engineering

What is the significance of air holes in the armature?

What is the significance of air holes in the armature?
Answer : The air holes in the armature of a motor or generator play an important role in ensuring proper ventilation and cooling. Here's why they are significant: 1. **Cooling:** The armature ... are there to keep the motor cool, prevent overheating, and ensure that it runs efficiently and reliably....

View solution

0 like 0 dislike

1 view 1 answer

in Electrical Engineering

What is meant by armature reaction in alternators?

View solution

0 like 0 dislike

2 views 0 answers

in Electrical Engineering

Why is the glass plate inclined at 45°?

View solution

0 like 0 dislike

1 view 0 answers

in Electrical Engineering

Why use the VCB at High Transmission System ? Why can’t use ACB?

View solution

0 like 0 dislike

3 views 0 answers

in Electrical Engineering

Why induction motor draws heavy current at starting?

Why induction motor draws heavy current at starting?
Answer : Induction motors draw heavy current at startup due to the following reasons: 1. **No Back EMF (Electromotive Force) at Startup**: When an induction motor starts, the rotor is initially at ... motor is stationary, and the current gradually reduces as the motor accelerates and the back EMF increases....

View solution

0 like 0 dislike

4 views 1 answer

in Electrical Engineering

Why AC Needs More Insulation Than DC at Same Voltage Level?

Why AC Needs More Insulation Than DC at Same Voltage Level?
Answer : AC (Alternating Current) requires more insulation than DC (Direct Current) at the same voltage level primarily due to the nature of the current flow and the associated risks. Here's ... increased stress on the insulation material. This helps prevent insulation failure and ensures safe operation....

View solution

0 like 0 dislike

5 views 1 answer

Why field rheostat is kept in minimum position while armature rheostat at maximum position?

0 Answers

Related questions

Subjects