1. The resistance of an ideal voltmeter is:
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Unit 16: Current Electricity
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Question 1 of 20
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2. Which quantity remains constant in an ohmic conductor at constant temperature?
3. The SI unit of resistivity is:
4. Ohm’s Law states that current through a conductor is directly proportional to:
5. The resistance of an ideal ammeter is:
6. A galvanometer can detect:
7. Household electric supply is usually:
8. In Ohm’s Law experiment, the graph between V and I is:
9. Mathematical form of Ohm’s Law is:
10. The SI unit of electric current is:
11. The SI unit of EMF is:
12. To convert a galvanometer into a voltmeter, we connect:
13. Copper is widely used for electrical wiring because it has:
14. Resistance increases with increase in:
15. To convert a galvanometer into an ammeter, we connect:
16. Which instrument is most sensitive for detecting small currents?
17. The SI unit of resistance is:
18. A voltmeter is connected in a circuit in:
19. Which instrument is used to measure electric current?
20. In the formula R = ρL/A, the symbol ρ represents: