# NEET Physics: Questions 477 - 481 of 2142

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2142 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

## Question number: 477

MCQ▾

### Question

The emf of a standard cell balances across 150 cm length of a wire of potentiometer. When a resistance of 2Ω is connected as a shunt with the cell, the balance point is obtained at 100 cm. The internal resistance of the cell is

### Choices

Choice (4) Response

a.

0.1 Ω

b.

1 Ω

c.

0.5 Ω

d.

2 Ω

## Question number: 478

MCQ▾

### Question

A potentiometer consists of a wire of length 4 m and resistance 10 Ω. It is connected to cell of emf 2 V. The potential difference per unit length of the wire will be

### Choices

Choice (4) Response

a.

2 V/m

b.

0.5 V/m

c.

10 V/m

d.

5 V/m

## Question number: 479

MCQ▾

### Question

In the adjoining network of resistors, each is of resistance r ohm, the equivalent resistance between points A and B is-

### Choices

Choice (4) Response

a.

r

b.

c.

d.

5r

## Question number: 480

MCQ▾

### Question

In the figure a carbon resistor has bands of different colors on its body as mentioned in the figure. The value of the resistance is

### Choices

Choice (4) Response

a.

3.3 k Ω

b.

2.2 k Ω

c.

5.6 k Ω

d.

9.1 k Ω

## Question number: 481

MCQ▾

### Question

A micro-ammeter has a resistance of 100Ω and a full scale range of 50 μA. It can be used as a voltmeter or a higher range ammeter provided a resistance is added to it Pick the correct range and resistance combination

(1) 10V range with 200 k Ω resistance in series.

(2) 50V range with 10 k Ω resistance in series.

(3) 5 mA range with 1 Ω resistance in parallel.

(4) 10 mA range with 1 k Ω resistance in parallel.

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

### Choices

Choice (4) Response

a.

1, 2 and 3

b.

1 and 2

c.

2 and 4

d.

1 and 3

f Page