# Electromagnetic Induction & Alternating Currents (AIIMS (All India Institute of Medical Sciences) Physics): Questions 19 - 22 of 51

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## Question number: 19

» Electromagnetic Induction & Alternating Currents » AC Generator and Transformer

Appeared in Year: 1997

MCQ▾

### Question

The primary winding of a transformer has 500 turns whereas its secondary has 5000 turns. The primary is connected to a supply of 20 V, 50 Hz. The secondary will have an output of – [AIPMT]

### Choices

Choice (4) Response

a.

2 V, 5 Hz

b.

2 V, 50 Hz

c.

200 V, 50 Hz

d.

200 V, 500 Hz

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## Question number: 20

» Electromagnetic Induction & Alternating Currents » Self and Mutual Inductance

Appeared in Year: 1998

MCQ▾

### Question

Transformer works on the basis of the following phenomenon –

[AIIMS, RPMT-89]

### Choices

Choice (4) Response

a.

Electrical discharge

b.

Mutual induction

c.

Self-induction

d.

Generation of electro-magnetic waves.

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## Question number: 21

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

Appeared in Year: 2003

MCQ▾

### Question

A capacitor of capacitance is connected in the tank circuit of an oscillator oscillating with a frequency of 1 kHz. If the current flowing in the circuit is 2 mA, the voltage across the capacitor will be – [AIIMS]

### Choices

Choice (4) Response

a.

159 V

b.

0.32 V

c.

0.16 V

d.

79.5 V

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## Question number: 22

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

Appeared in Year: 2005

MCQ▾

### Question

A 50 Hz a. c. source of 20 volts is connected across R and C as shown in figure below. The voltage across R is 12 volts. The voltage across C is – [AIIMS]

### Choices

Choice (4) Response

a.

Not possible to determine unless values of R and C are given

b.

8 V

c.

16V

d.

10 V

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