NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 460 - 465 of 2320

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Question number: 460

» Current Electricity » Electric Cell and Its Internal Resistance

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MCQ▾

Question

To get the maximum current from a parallel combination of n identical cells each of internal resistance r in an external resistance R,

Choices

Choice (4)Response

a.

R = r

b.

R < < r

c.

R > r

d.

R > > r

Question number: 461

» Current Electricity » Kirchhoff's Laws

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MCQ▾

Question

The figure below shows currents in a part of electric circuit.

The current i is

Current in a part of electric circuit

Current in a Part of Electric Circuit

Choices

Choice (4)Response

a.

1.3 amp

b.

1.7 amp

c.

3.7 amp

d.

1 amp

Question number: 462

» Current Electricity » Electrical Resistance

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MCQ▾

Question

In the following figure the ratio of current in 3Ω . and 1Ω resistances is-

Circuit Diagram with R1, R2 and R3 resistors

Circuit Diagram with R1, R2 and R3 Resistors

Choices

Choice (4)Response

a.

2

b.

c.

1

d.

Question number: 463

» Current Electricity » Electric Cell and Its Internal Resistance

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MCQ▾

Question

The resistance of an ideal voltmeter is

Choices

Choice (4)Response

a.

Zero

b.

Very large

c.

Very low

d.

Infinite

Question number: 464

» 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: 465

» Current Electricity » Electric Cell and Its Internal Resistance

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MCQ▾

Question

In the circuit shown below, if the value of R is increased then what will be the effect on the reading of ammeter if the internal resistance of cell is negligible-

Circuit consist ammeter, two resistors and one battery

Circuit Consist Ammeter, Two Resistors and One Battery

Choices

Choice (4)Response

a.

The reading of ammeter will decrease

b.

The reading of ammeter will remain unchanged

c.

The reading of ammeter will become zero.

d.

The reading of ammeter will increase

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