Current Electricity (NEET Physics): Questions 53 - 56 of 75

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2099 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: 53

» Current Electricity » Electrical Resistance

MCQ▾

Question

The equivalent resistance of the following infinite network of resistance is

Network of equal resistance 2Ω

Network of Equal Resistance 2Ω

Figure shows the infinite network of equivalent resistance of 2Ω.

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: 54

» Current Electricity » Wheatstone Bridge

MCQ▾

Question

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

Block diagram of Post office box

Block Diagram of Post Office Box

Figure shows the block diagram of Post office box, dots are indicating the resistance. And dark dots represent patches where resistance being connected.

Choices

Choice (4) Response
a.

A and D

b.

C and D

c.

B 1 and C 1

d.

B and C

Question number: 55

» Current Electricity » Metre Bridge

MCQ▾

Question

Resistance in the two gaps of a meter bridge are 10 ohm and 30 ohm respectively. If the resistances are interchanged the balance point shifts by

Choices

Choice (4) Response
a.

33.3 cm

b.

50 cm

c.

66.67 cm

d.

25 cm

Question number: 56

» Current Electricity » Potentiometer

MCQ▾

Question

In given figure, the potentiometer wire AB has a resistance of 5 Ω and length 10 m. What is the balancing length AM for the emf of 0.4 V?

Circuit diagram of potentiometer with balance point M

Circuit Diagram of Potentiometer With Balance Point M

Here figure shows the circuit diagram of potentiometer with balance point M. battery of 5V connected with resistor R and a key.

Choices

Choice (4) Response
a.

4 m

b.

0.4 m

c.

8 m

d.

0.8 m

Sign In