# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 745 - 749 of 2320

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## Question number: 745

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MCQ▾

### Question

An inductive circuit contains resistance of 10Ω and an inductance of 20 H. If an ac voltage of 120 V and frequency 60 Hz is applied to this circuit, the current would be nearly

### Choices

Choice (4)Response

a.

0.48 A

b.

0.32 A

c.

0.80 A

d.

0.016 A

## Question number: 746

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MCQ▾

### Question

A body of mass 50 kg is pulled by a rope of length 8 m on a surface by a force of 108N applied at the other end. The force that is acting on 50 kg mass, if the linear density of rope is 0.5 kg/m will be –

### Choices

Choice (4)Response

a.

116 N

b.

108 N

c.

100 N

d.

92 N

## Question number: 747

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MCQ▾

### Question

The magnetic flux passing perpendicular to the plane of the coil and directed into the paper is varying according to the relation , where is in milli-weber and t is in second. Then the magnitude of emf induced in the loop when t = 2 second is-

### Choices

Choice (4)Response

a.

31 mV

b.

19 mV

c.

-6 mV

d.

-14 mV

## Question number: 748

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MCQ▾

### Question

A 20 volt ac is applied to a circuit consisting of a resistance and a coil with negligible resistance. If the voltage across the resistance is 12 V, the voltage across the coil is

### Choices

Choice (4)Response

a.

16 volt

b.

10 volt

c.

6 volt

d.

8 volt

## Question number: 749

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MCQ▾

### Question

A current of 10 A in the primary coil of a circuit is reduced to zero at a uniform rate in 10 -3 second. If the coefficient of mutual inductance is 3H, the induced e. m. f. in the secondary coil will be,

### Choices

Choice (4)Response

a.

30 kV

b.

2 kV

c.

20kV

d.

3 kV

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