Current Electricity (NEET Physics): Questions 5 - 9 of 75

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Question number: 5

» Current Electricity » Electric Cell and Its Internal Resistance

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: 6

» Current Electricity » Kirchhoff's Laws

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

here a, b, c are the three networks of current flowing through electric circuit. The values of currents are shown in figure.

Choices

Choice (4) Response

a.

1.7 amp

b.

1 amp

c.

3.7 amp

d.

1.3 amp

Question number: 7

» Current Electricity » Electrical Resistance

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

In figure two resistance 3Ω and 6Ω connect parallel and resistance of 1Ω connected in series of them.

Choices

Choice (4) Response

a.

2

b.

13

c.

23

d.

1

Question number: 8

» Current Electricity » Electric Cell and Its Internal Resistance

MCQ▾

Question

The resistance of an ideal voltmeter is

Choices

Choice (4) Response

a.

Very large

b.

Infinite

c.

Very low

d.

Zero

Question number: 9

» Current Electricity » Metre Bridge

Assertion-Reason▾

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.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are false

d.

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

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