# Current Electricity (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics): Questions 17 - 19 of 25

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## Question number: 17

» Current Electricity » Series and Parallel Combinations of Resistors

Appeared in Year: 2014

MCQ▾

### Question

Consider the circuit shown below where all resistors are of 1kΩ.

If a current of magnitude 1 mA flows through the resistor marked X, what is the potential difference measured between points P and Q?

### Choices

Choice (4) Response

a.

55 V

b.

34 V

c.

21 V

d.

68 V

## Question number: 18

» Current Electricity » Electric Current

MCQ▾

### Question

A current of 0.3 A flows through a 30 Ω resistor represented by the circuit diagram. The current in the 100 Ω resistor is,

### Choices

Choice (4) Response

a.

1.26 A

b.

1.66 A

c.

0.56 A

d.

0.89 A

## Question number: 19

» Current Electricity » Ohm's Law

Appeared in Year: 2015

MCQ▾

### Question

A light bulb of resistance R = 16 Ω is attached in series with an infinite resistor network with identical resistances r as shown below. A 10 V battery drives current in the circuit. What should be

the value of r such that the bulb dissipates about 1 W of power?

### Choices

Choice (4) Response

a.

29.4 Ω

b.

3.7 Ω

c.

14.8 Ω

d.

7.4 Ω

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