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Electromagnetic induction

Electromagnetic induction
Which of the following circuit elements will oppose the change in circuit current?

Capacitance
All of the listed here
Resistance
Inductance

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Electromagnetic induction
Mutually inductance between two magnetically coupled coils depends on

Cross-sectional area of their common core
The number of their turns
All of the listed here
Permeability of the core

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Electromagnetic induction
If current in a conductor increases then according to Lenz's law self-induced voltage will

Aid the applied voltage
Tend to decrease the amount of current
Aid the increasing current
Produce current opposite to the increasing current

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Electromagnetic induction
Which circuit element(s) will oppose the change in circuit current?

Inductance and capacitance
Resistance only
Capacitance only
Inductance only

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Electromagnetic induction
Which of the following circuit element stores energy in the electromagnetic field?

Resistance
Inductance
Condenser
Variable resistor

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Electromagnetic induction
For a purely inductive circuit which of the following is true?

Relative power is zero
Any capacitance even if present in the circuit will not be charged
Apparent power is zero
Actual power of the circuit is zero

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