Back to ALTERNATING CURRENT

Your Progress

0 / 154 Answered

Correct

Incorrect

Accuracy

NEET • PHYSICS • ALTERNATING CURRENT

Alternating current practice · Mixed difficulty

Choose an answer to check it, or open “View answer” to study the explanation. Sign in to save progress to your account.

Practice format and chapter quiz

The practice player uses single-correct-answer MCQs. Chapter quizzes help you review a topic; they are not full-length NEET mock papers.

Take a chapter quiz →

Showing 151-154 of 154 questions

Preparing practice and saved progress…

151 Easy

151 of 154

Understanding +4 | -1

In an AC series circuit, the instantaneous current is maximum when the instantaneous voltage is maximum. The circuit element connected to the source will be

View answer and explanation

Correct option: C

Pure resistor

Option C is correct because in a pure resistor circuit, the instantaneous current and voltage are in phase, meaning they reach their maximum values at the same time.

152 Easy

152 of 154

Application +4 | -1

If an 8 Ω resistance and 6 Ω reactance are present in an ac series circuit then the impedance of the circuit will be

View answer and explanation

Correct option: C

10 ohm

Option C (10 ohm) is correct because impedance is the vector sum of resistance and reactance in an AC circuit.

153 Easy

153 of 154

Application +4 | -1

An alternating current of frequency ‘f’ is flowing in a circuit containing a resistance R and a choke L in series. The impedance of this circuit is

View answer and explanation

Correct option: B

\sqrt {{R^2} + 4{\pi ^2}{f^2}{L^2}}

Option B (

\sqrt {{R^2} + 4{\pi ^2}{f^2}{L^2}}

) is correct because the impedance of a series RL circuit is given by

Z = \sqrt{R^2 + X_L^2}

, where

X_L = 2\pi fL

154 Medium

154 of 154

Application +4 | -1

The peak value of 220 volts of ac mains is

View answer and explanation

Correct option: C

311.0 volts

Option C (311.0 volts) is correct because the peak value of AC voltage is calculated by multiplying the RMS voltage by

\sqrt{2}

Revision notes and key takeaways

Review ALTERNATING CURRENT in your textbook or class notes, then use this set to check your understanding.

Showing 151-154 of 154 questions

Your Progress

Alternating current practice · Mixed difficulty

Continue Your Practice

Your practice