What is the resistance of gold at temperature?

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Why Ohms law is not applicable at very low temperature?

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Why do semiconductors behave as conductors at room temperature Class 12?

Why do semiconductors behave as conductors at room temperature Class 12?
Answer : Semiconductors behave as conductors at room temperature because of thermal energy. Here's why: 1. **Energy Band Theory**: Semiconductors have a **small energy gap (band gap)** between ... semiconductors have **enough free charge carriers** to conduct electricity, but not as efficiently as metals....

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Why Ohms law is not applicable at variable temperature?

Why Ohms law is not applicable at variable temperature?
Answer : Ohm's law, which states that \( V = IR \) (where \( V \) is voltage, \( I \) is current, and \( R \) is resistance), assumes that the resistance \( R \) of a ... variable. Instead, you need to account for how resistance changes with temperature in order to understand the behavior of the material....

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At what temperature is Ohm's law valid?

At what temperature is Ohm's law valid?
Answer : Ohm's law is valid at a temperature where the material behaves in a linear and predictable manner, meaning the resistance stays constant with changes in voltage or current. For most materials, ... too much with temperature changes. This is typically around **room temperature** for most conductors....

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Why Ohm's law is not applicable at very low temperature?

Why Ohm's law is not applicable at very low temperature?
Answer : Ohm's law, which states that \( V = I \times R \) (where \( V \) is the voltage, \( I \) is the current, and \( R \) is the resistance), is ... because the behavior of materials, especially their resistance, changes due to quantum effects, superconductivity, and altered electron scattering....

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How does skin effect impact the resistance of a conductor at high frequencies?

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A 3 phase line of 4 km length delivers 4000 kW at a p.f of 0.8 lagging to a load the resistance and reactance per km of each conductor are 0.2 Ω and 0.5 Ω respectively if the voltage at the supply end is maintained at 11 kV. Calculate the received end voltage and efficiency of line.
Answer : Let's break down the problem step by step and calculate the received end voltage and the efficiency of the line. ### Given Data: - Power delivered to the load, \( P = 4000 \, \text{kW} \) - Power factor, \( \text{p. ... voltage**: \( 10.43 \, \text{kV} \) - **Efficiency of the line**: \( 98.61\% \)...

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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.

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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....

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What is the temperature dependence of resistance for conductors insulators and semiconductors?

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What is the effect of temperature on resistance?

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What is the effect of temperature on the resistance of semiconductors?

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What is the effect of temperature increase on the resistance of a resistor?

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What is the effect of temperature on resistance Class 12?

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How does the resistance of a conductor change if its temperature is increased?

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Why does the resistance of a conductor rise with temperature class 12?

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How does increase in temperature affect the resistance of conductor and insulator?

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How does increase in temperature affect the resistance of an insulator?

How does increase in temperature affect the resistance of an insulator?
Answer : When the temperature of an insulator increases, its resistance typically increases as well. This happens because, in most insulators, the atoms or molecules are not free to move (they are tightly ... in conductors. So, in general, an increase in temperature leads to higher resistance in insulators....

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What is the effect of temperature on the resistance of a conductor explain?

What is the effect of temperature on the resistance of a conductor explain?
Answer : The resistance of a conductor is affected by temperature. In general, for most conductors (like metals), the resistance **increases with an increase in temperature**. Here's how ... this effect is different for materials like semiconductors, which decrease in resistance as temperature increases....

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How does increase in temperature affect the resistance of semiconductor?

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How does temperature affect the resistance of a conductor?

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How does increase in temperature affect the resistance of a conductor?

How does increase in temperature affect the resistance of a conductor?
Answer : When the temperature of a conductor increases, its resistance generally increases as well. This happens because, as the temperature rises, the atoms in the conductor vibrate more intensely. These ... resistance of most conductors increases, but the exact rate depends on the material's properties....

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Why is increasing the temperature the specific resistance of a conductor and a semiconductor?

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How does the resistance of a conductor depend on temperature?

How does the resistance of a conductor depend on temperature?
Answer : The resistance of a conductor generally increases with temperature. This happens because, as the temperature rises, the atoms in the material vibrate more. These vibrations make it harder ... In contrast, for some materials like semiconductors, the resistance decreases as the temperature increases....

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How does the resistance of an insulator change with temperature?

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What is the effect of temperature on the resistance of a conductor?

What is the effect of temperature on the resistance of a conductor?
Answer : The resistance of a conductor generally increases with an increase in temperature. Here's why: 1. **Atomic Vibrations**: At higher temperatures, the atoms in the conductor (like ... materials, like semiconductors, where the resistance decreases with temperature, but that's a different behavior....

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How does the temperature of a resistor affect its resistance?

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How does increase in temperature affect the resistance of insulators?

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What is the relationship of temperature with the resistance and resistivity of a conductor?

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How does the resistance of a conductor vary with temperature?

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How does temperature affect the resistance of a semiconductor?

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What is the effect of temperature on resistance and resistivity Class 12?

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How and why is resistance affected by temperature of conductors?

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Why does the resistance of a conductor increase with increasing temperature?

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How does temperature affect the resistance of insulators?

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What is the effect of temperature on the resistance of conductors and semiconductors?

What is the effect of temperature on the resistance of conductors and semiconductors?
Answer : The effect of temperature on the resistance of conductors and semiconductors is quite different due to their distinct electrical properties. Let's break it down: ### 1. **Conductors (e.g. ... like resistors, sensors, and circuits, where temperature can affect the overall performance of the system....

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How does temperature affect the resistance of an insulator?

How does temperature affect the resistance of an insulator?
Answer : Temperature has a significant impact on the resistance of materials, but its effect on insulators is a bit different from that on conductors. For **insulators**, as temperature increases, their ... The material still resists the flow of electricity, just a bit less than at lower temperatures....

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What is the effect of temperature on resistance Class 11?

What is the effect of temperature on resistance Class 11?
Answer : In Class 11 Physics, you study how the **temperature** affects the **resistance** of a material. Here's a simple explanation: ### 1. **For Conductors (like metals):** As ... important in practical applications, such as in thermistors, where the resistance is used to measure temperature changes....

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How does an increase in temperature affect the resistance of a conductor?

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Why does the resistance of insulators decrease with an increase in temperature?

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How is the resistance of a conductor affected by temperature change?

How is the resistance of a conductor affected by temperature change?
Answer : The resistance of a conductor is affected by temperature changes. Typically, for most metallic conductors (like copper or aluminum), the resistance increases with an increase in temperature ... the temperature increases, resistance increases**, and as the temperature decreases, resistance decreases....

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What happened to resistance of conductor when temperature is increased?

What happened to resistance of conductor when temperature is increased?
Answer : When the temperature of a conductor increases, its resistance generally increases as well. This happens because the atoms in the conductor vibrate more as the temperature rises, which ... like semiconductors, the opposite can happen, and their resistance decreases with increasing temperature....

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What is the effect of temperature on the resistance of a conductor Class 11?

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How does increasing temperature affect the resistance of conductor and insulator?

How does increasing temperature affect the resistance of conductor and insulator?
Answer : Increasing temperature affects both conductors and insulators differently. ### 1. **Conductor (e.g., metals like copper, aluminum)**: - **Resistance increases** with temperature. - In ... , resistance decreases. The effect is more significant in conductors, especially at higher temperatures....

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How does increase in temperature affect the resistance of (i) conductors and (ii) insulators ?

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Does internal resistance increase with temperature?

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How does resistance depend on temperature?

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How is insulation resistance affected by change in temperature?

How is insulation resistance affected by change in temperature?
Answer : Insulation resistance typically decreases as temperature increases. Here's why: 1. **Material Conductivity**: Insulation materials are usually made from non-conductive substances like ... resistance tests are usually performed at standard temperatures to ensure consistent and reliable results....

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