Current Electricity-Wheatstone Bridge (NEET Physics): Questions 4 - 6 of 7

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Question number: 4

» Current Electricity » Wheatstone Bridge

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: 5

» 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: 6

» Current Electricity » Wheatstone Bridge

MCQ▾

Question

In the circuit shown in the figure, the current flowing in 2Ω, resistance

 Bridge circuit consists of four resistors and a galvanometer.

Bridge Circuit Consists of Four Resistors and a Galvanometer.

Figure shows the bridge circuit with 10Ω, 2 Ω, 5 Ω and 25 Ω resistors. Current of 1.4 A is passing in circuit.

Choices

Choice (4) Response
a.

1.0A

b.

1.2 A

c.

1.4A

d.

0.4 A

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