IIT JEE Questions And Answers :: Current Electricity: part1



IIT JEE : Current Electricity QUESTIONS AND ANSWERS :: part1 : 1 to 5

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2014 examinations :

1.The ratio of the lengths, densities, masses and resistivities of two wires A and B are 1: 2, 1: 2, 1:1, 1: 4 respectively. The ratio of their resistance are:

1: 32
1: 16
8: 1
4: 1

2.The length of a conductor is halved. Its conductance will be:

halved
unchanged
doubled
quadrupled

3.The resistances in left and right gaps of a metre bridge are 4 and 6 ohm. The balance point is obtained at

20 cm
40 cm
30 cm
25 cm

4.When cells are connected in series:

the emf increases
the PD decreases
the current capacity increases
the current capacity decreases

5.Two cells of 1.25 V and 0.75 V are connected in parallel. The effective voltage is:

0.75 V
2 V
1.25 V
0.5 V

More Current Electricity QUESTIONS AND ANSWERS available in next pages

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