Magnetic Fields & Electromagnetic Induction for Exams

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Magnetic Fields and Electromagnetic Induction - Transient Response in RC Circuits

Q. In an AC circuit, what is the term for the maximum voltage?

Solution

The maximum voltage in an AC circuit is referred to as the peak voltage.

Correct Answer: B — Peak voltage

Q. What is the effect of increasing the resistance in an RC circuit on the time constant?

Solution

Increasing the resistance in an RC circuit increases the time constant, as τ = R * C.

Correct Answer: C — It increases the time constant

Q. What is the expression for the total energy stored in a capacitor (U) in terms of capacitance (C) and voltage (V)?

Solution

The total energy stored in a capacitor is given by U = 1/2 * C * V^2.

Correct Answer: A — U = 1/2 * C * V^2

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