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
Choices
Choice (4) | Response | |
---|---|---|
a. | 0V, 3A | |
b. | 0V, 8A | |
c. | 150 V, 6A | |
d. | 150V, 3A |
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
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
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 |