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 2024 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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