# Electromagnetic Induction & Alternating Currents (AIIMS Physics): Questions 46 - 50 of 51

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## Question number: 46

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

Appeared in Year: 1998

MCQ▾

### Question

Two coil have a mutual inductance . The current changes in first coil according to equation , where and . The maximum value of induced emf in second coil is – (AIPMT)

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 47

» Electromagnetic Induction & Alternating Currents » AC Generator and Transformer

Appeared in Year: 2003

MCQ▾

### Question

A generator produces a voltage where V is in volts and in second. The frequency and r. m. s voltage are – [RPMT]

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 48

» Electromagnetic Induction & Alternating Currents » Alternating Currents

MCQ▾

### Question

Alternating voltage is applied across the resistance . The rms value of current is equal to –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 49

» Electromagnetic Induction & Alternating Currents » Alternating Currents

MCQ▾

### Question

An alternative current is given as, . The average value of current over a half – cycle –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 50

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

Appeared in Year: 1987

MCQ▾

### Question

In a LCR series circuit, , and the total impedance of the circuit is: [RPET]

### Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

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