1. | A constant voltage is applied between the two ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if ? | |
2. | The relaxation time in conductors ? | |
3. | The example of non-ohmic resistance is ? | |
4. | To draw a maximum current from a combination of cells, how should the cells be grouped ? | |
5. | For measuring voltage of any circuit, potentiometer is preferred to voltmeter because ? | |
6. | The current which is assumed to be flowing in a circuit from positive terminal to negative, is called ? | |
7. | When there is an electric current through a conducting wire along its length, then an electric field must exist ? | |
8. | Which of the following is wrong? Resistivity of a conductor is ? | |
9. | The speed at which the current travels, in conductor, is nearly equal to ? | |
10. | Potentiometer measures potential more accurately because ? | |