Current Electricity-Metre Bridge (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 1 - 4 of 4

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Question number: 1

» Current Electricity » Metre Bridge

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Assertion-Reason▾

Question

Assertion (Ꭺ)

In meter bridge experiment, a high resistance is always connected in series with a galvanometer.

Reason (Ꭱ)

As resistance increases current through the circuit increases.

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are false

Question number: 2

» Current Electricity » Metre Bridge

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MCQ▾

Question

Two resistances are connected in two gaps of a meter bridge. The balance point is 20 cm from the zero ends. A resistance of 15 ohms is connected in series with the smaller of the two. The null point shifts to 40 cm. The value of the smaller resistance in ohm is

Choices

Choice (4) Response

a.

3

b.

12

c.

9

d.

6

Question number: 3

» Current Electricity » Metre Bridge

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MCQ▾

Question

In Meter Bridge or Wheatstone bridge for measurement of resistance, the known and the unknown resistances are interchanged. The error so removed is

Choices

Choice (4) Response

a.

Index error

b.

End correction

c.

Random error

d.

Due to temperature effect

Question number: 4

» Current Electricity » Metre Bridge

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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.

50 cm

b.

25 cm

c.

66.67 cm

d.

33.3 cm

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