# Current Electricity [JEE (Based on NTA Guidelines-IIT Engg.) Advanced Physics]: Questions 1 - 3 of 15

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## Question number: 1

» Current Electricity » Electric Current

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Appeared in Year: 2016

MCQ▾

### Question

In the circuit shown below, the key is pressed at time . Which of the following statement (s) is (are) true?

### Choices

Choice (4)Response

a.

The current in the ammeter becomes zero after a long time

AND

The voltage displays as soon as the key is pressed, and displays after a long time.

b.

The voltmeter will display at time

c.

The current in the ammeter becomes of the initial value after

d.

All a. , b. and c. are correct

## Question number: 2

» Current Electricity » Electric Current

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Appeared in Year: 2010

MCQ▾

### Question

In the circuit shown below, the key is closed at . The current through the battery is:

(AIEEE)

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 3

» Current Electricity » Temperature Dependence of Resistance

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Appeared in Year: 2014

MCQ▾

### Question

Heater of an electric kettle is made of a wire of length and diameter . It takes to raise the temperature of water by . This heater is replaced by a new heater having two wires of the same material, each of length and diameter . The way these wires are connected is given in the options. How much time in minutes will it take to raise the temperature of the same amount of water by ?

### Choices

Choice (4)Response

a.

if wires are in series

b.

if wires are in parallel

c.

if wires are in parallel

d.

Both a. and b. are correct

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