Electromagnetic Induction & Alternating Currents-LCR Series Circuit [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 6 - 8 of 31

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Question 6

Question MCQ▾

In the circuit shown in figure neglecting source resistance the voltmeter and ammeter reading will respectively, be

Circuit Diagram of LCR

Choices

Choice (4)Response

a.

0V, 3A

b.

0V, 8A

c.

150 V, 6A

d.

150V, 3A

Edit

Question 7

Question MCQ▾

For the series LCR circuit shown in the figure, what is the resonance frequency and the amplitude of the current at the resonating frequency

LCR Circuit Diagram

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 8

Question MCQ▾

An alternating emf of frequency is applied to a series LCR circuit. For this frequency of the applied emf is,

Choices

Choice (4)Response

a.

The quality factor of the circuit is or and this is a measure of the voltage magnification (produced by the circuit at resonance) as well as the sharpness of resonance of the circuit.

b.

The current in the circuit is not in phase with the applied e. m. f. and the voltage across R equals this applied emf

c.

The circuit is at resonance and its impedance is made up only of a reactive part.

d.

The sum of the potential differences across the inductance and capacitance equals the applied e. m. f. which is 180° ahead of phase of the current in the circuit

Edit