Current Electricity-Electric Cell and Its Internal Resistance (NEET Physics): Questions 1 - 4 of 10

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Question number: 1

» 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: 2

» 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: 3

» Current Electricity » Electric Cell and Its Internal Resistance

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

As show in circuit ammeter and one resistor of resistance R’ connected in series, and parallel to that one resistance connected and across it one battery connected.

Choices

Choice (4) Response

a.

The reading of ammeter will decrease

b.

The reading of ammeter will increase

c.

The reading of ammeter will become zero.

d.

The reading of ammeter will remain unchanged

Question number: 4

» Current Electricity » Electric Cell and Its Internal Resistance

MCQ▾

Question

A micro-ammeter has a resistance of 100Ω and a full scale range of 50 μA. It can be used as a voltmeter or a higher range ammeter provided a resistance is added to it Pick the correct range and resistance combination

(1) 10V range with 200 k Ω resistance in series.

(2) 50V range with 10 k Ω resistance in series.

(3) 5 mA range with 1 Ω resistance in parallel.

(4) 10 mA range with 1 k Ω resistance in parallel.

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1, 2 and 3

b.

1 and 2

c.

2 and 4

d.

1 and 3

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