IIT JEE Questions And Answers :: Current Electricity: part1



IIT JEE : Current Electricity QUESTIONS AND ANSWERS :: part1 : 21 to 25

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :

21.Which of the following is likely to have the largest resistance?

Moving coil galvanometer
An ammeter of range 1A
A voltmeter of range 10V
A copper wire of length 1 m and diameter 3 cm

22.To convert a galvanometer into an ammeter, we should connect:

a low resistance in series with it
a high resistance in series with it
a low resistance in parallel with it
a high resistance in parallel with it

23.A fuse wire of radius 0.2 mm blows out for a current of 5 A. For what current, another fuse wire of same material but of radius 0.3 mm will blow out?

5 A
3.2 A
4.33 A
11.2 A

24.Overloading of an electric circuit implies:

drawing of large current
connecting high resistance device
connecting a large number of electric devices in series with the power supply
none of the above

25.Two resistances are connected in parallel and a current is sent through the combination. The current divides itself:

in the inverse ratio of resistances
in the direct ratio of resistances
equally in both the resistances
in none of the above manner

More Current Electricity QUESTIONS AND ANSWERS available in next pages

    Health is the greatest gift, contentment is the greatest wealth -Buddha
Innovation distinguishes between a leader and a follower.-Steve Jobs