Electromagnetic Induction & Alternating Currents (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 120 - 123 of 124

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Question number: 120

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

Appeared in Year: 2016

MCQ▾

Question

The potential differences across the resistance, capacitance and inductance are and respectively in an L-C-R circuit. The power factor of this circuit is –

Choices

Choice (4) Response

a.

0.8

b.

c.

0.4

d.

0.5

Question number: 121

» Electromagnetic Induction & Alternating Currents » Quality Factor

Appeared in Year: 2016

MCQ▾

Question

Which of the following combination should be selected for better tuning of an L-C-R circuit used for communication?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 122

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

Appeared in Year: 2017

MCQ▾

Question

Figure shows a circuit that contains three identical resistors with resistance each, two identical inductors with inductance each and an ideal battery with emf . The current through the battery just after the switch closed is –

Circuit diagram consist of three resistors

Circuit Diagram Consist of Three Resistors

In figure circuit diagram consists of three resistors, two inductors and a capacitor, is shown.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 123

» Electromagnetic Induction & Alternating Currents » AC Generator and Transformer

Appeared in Year: 2017

MCQ▾

Question

In a common emitter transistor amplifier the audio signal voltage across the collector is 3V. The resistance of collector is . If current gain is and the base resistance is , the voltage and power gain of the amplifier is:

Choices

Choice (4) Response

a.

b.

c.

d.

f Page
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