Current Electricity-Electric Cell and Its Internal Resistance (NEET Physics): Questions 5 - 8 of 10

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Question number: 5

» Current Electricity » Electric Cell and Its Internal Resistance

MCQ▾

Question

An ammeter with internal resistance 90 Ω reads 1.85 A when connected in a circuit containing a battery and two resistors 700 Ω and 410 Ω in series. Actual current will be

Choices

Choice (4) Response

a.

Less than 1.85 A

b.

Greater than 1.85 A

c.

1.85 A

d.

All of the above

Question number: 6

» Current Electricity » Electric Cell and Its Internal Resistance

Assertion-Reason▾

Assertion (Ꭺ)

voltammeter measures current more accurately than ammeter.

Reason (Ꭱ)

Relative error will be small if measured from voltammeter.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

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

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

Question number: 7

» Current Electricity » Electric Cell and Its Internal Resistance

MCQ▾

Question

When a Leclanche cell is connected to a 10Ω resistance then a current of 0.25 ampere flows in the circuit. If the resistance is reduced to 4 Ω then current becomes 0.5ampere. The internal resistance of galvanometer will be

Choices

Choice (4) Response

a.

1.5 Ω

b.

2 Ω

c.

1 Ω

d.

0.5 Ω

Question number: 8

» Current Electricity » Electric Cell and Its Internal Resistance

Assertion-Reason▾

Assertion (Ꭺ)

In a simple battery circuit the point of lowest potential is negative terminal of the battery.

Reason (Ꭱ)

The current flows towards the point of the higher potential as it flows in such a circuit from the negative to the positive terminal.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

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

d.

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

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