Current Electricity-Potentiometer (NEET Physics): Questions 15 - 17 of 17

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2098 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: 15

» Current Electricity » Potentiometer

MCQ▾

Question

The arrangement as shown in figure is called as

Circuit diagram consist of potentiometer, battery and a key

Circuit Diagram Consist of Potentiometer, Battery and a Key

In above circuit a key, a battery and potentiometer is connected

Choices

Choice (4) Response

a.

Potential subtracted

b.

Potential adder

c.

Potential multiplier

d.

Potential divider

Question number: 16

» Current Electricity » Potentiometer

MCQ▾

Question

In a potentiometer experiment the balancing with a cell is at length 240 cm. On shunting the cell with a resistance of 2 Ω, the balancing length becomes 120 cm. The internal resistance of the cell is

Choices

Choice (4) Response

a.

1 Ω

b.

4 Ω

c.

2 Ω

d.

0.5 Ω

Question number: 17

» Current Electricity » Potentiometer

MCQ▾

Question

A Potentiometer wire of length 1 m is connected in series with 490 Ω resistance and 2V battery. If 0.2mV/cm is the potential gradient, then resistance of the potentiometer wire is

Choices

Choice (4) Response

a.

6.9 Ω

b.

5.9 Ω

c.

4.9 Ω

d.

7.9 Ω

Sign In