# NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 505 - 508 of 2142

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## Question number: 505

MCQ▾

### Question

In the fig. shown, Calculate the current through 3 ohm resistor. The emf of battery is 2 volt and its internal resistance is ohm.

### Choices

Choice (4) Response

a.

0.44 am.

b.

0.33 amp

c.

1.22 amp

d.

0.88 amp

## Question number: 506

MCQ▾

### Question

Which is correct statements?

(1) The Wheatstone bridge is most sensitive when all the four resistances are of the same order

(2) Kirchhoff’s first law (for currents meeting at a junction in an electric circuit) expresses the conservation of charge.

(3) The rheostat can be used as a potential divider.

(4) In a balanced Wheatstone bridge, interchanging the positions of galvanometer and cell affects the balance of the bridge.

Select the correct answers and mark it according to the following codes:

### Choices

Choice (4) Response

a.

1 and 3

b.

1 and 2

c.

2 and 4

d.

1, 2 and 3

## Question number: 507

MCQ▾

### Question

The equivalent resistance of the following infinite network of resistance is

### Choices

Choice (4) Response

a.

12 Ω

b.

Less than 4 Ω

c.

More than 4 Ω but less than 12 Ω

d.

4 Ω

## Question number: 508

MCQ▾

### Question

For the post office box arrangement to determine the value of unknown resistance the unknown resistance should be connected between

### Choices

Choice (4) Response

a.

A and D

b.

C and D

c.

B 1 and C 1

d.

B and C

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