Define Holding current and Latching current of SCR.

What is Holding current?
Answer : **Holding current** is the minimum amount of current required to keep a device, typically a **thyristor** (like a **SCR**-Silicon Controlled Rectifier), in the "on" state after it has been ... current falls below this value, it's like the switch flips off, and the thyristor will stop conducting....

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in Electrical Engineering

Why is battery not holding charge?

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Why is my cell battery not holding a charge?

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Why is my lead acid battery not holding a charge?

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Define electrical current.

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Define current transformer.

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Define the following terms with respect to protective relays: i) Relay time ii) Reset current iii) Plug setting multiplier iv) Time setting multiplier.

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Define the following terms related to circuit breaker: i) Breaking Capacity ii) Making Capacity iii) Short time rating iv) Normal current rating.

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Define the following terms related to CB: i) Rated normal current ii) Rated breaking current iii) Short time rating iv) Symmetrical breaking current.

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How does current rating affect SCR selection?

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How does the anode current affect SCR operation once it's turned on?

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What is meant by gate trigger current in an SCR?

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Define transfer time and back up time of UPS.

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Define slip and synchronous speed of 3 phase induction motor.

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Define Rotor frequency and slip of three phase induction motor.

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Define electrical power and give its formula.

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What is vaccum currcuit breaker.define with cause and where be use it Device?

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Define what is difference between fuse and breaker?

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What is energy and define its SI unit?

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Define the term ‘‘cold reserve’’ and ‘‘hot reserve’’.

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Define fission and fusion related to nuclear fuel.

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Define the term ‘calibration’ and state its need for measuring instruments.

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Define Conduction angle and Firing angle.

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Define laminar flow and turbulent flow.

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Define atmospheric pressure and absolute pressure.

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Define laminar and turbulent flow.

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Define active and passive transducers.

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Define voltage regulation and Transmission Efficiency.

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Define: primary and secondary distribution system.

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Define the terms incandescent and incandescent lamp.

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Define the following terms (i) lux and (ii) lumens.

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Define chording factor and distribution factor.

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Define Quality factor and give the expression for the same.

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Define bandwidth and give its expression.

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Define Average value and give its mathematical expression.

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Define R.M.S. value and give its mathematical expression.

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Define Phasor and Phase angle.

Define Phasor and Phase angle.
Answer : ### Phasor: A **phasor** is a complex number that represents the magnitude and phase of a sinusoidal waveform (usually a voltage or current). Instead of dealing with the waveform in time ... (advanced). So, the phase angle helps describe the timing difference between different sinusoidal signals....

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