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Current Electricity MCQs
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Current Electricity MCQs
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25 Questions

1. Which of the following statement is true?
2. The minimum charge on an ion is
3. The ratio of mass of proton to that of electron is nearly
4. Electric current passing through the circuit produces
5. A substance whose molecules consist of dissimilar atoms is called
6. A glass rod when rubbed with silk cloth is charged because
7. The substances which have a large number of free electrons and offer a low resistance are called
8. The number of electrons in the outer most orbit of carbon atom is
9. A 3 Q resistor having 2 A current will dissipate the power of
10. The property of a conductor due to which it passes current is called
11. The S.I. unit of power is
12. If the efficiency of a machine is to be high, what should be low?
13. Nichrome wire is an alloy of
14. All good conductors have high
15. When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of the heater will
16. An instrument which detects electric current is known as
17. When current flows through heater coil it glows but supply wiring does not glow because
18. A resistance having rating 10 ohms, 10 W is likely to be a
19. Resistance of 220 V, 100 W lamp will be
20. When electric current passes through a bucket full of water, lot of bubbling is observed. This suggests that the type of supply is
21. The resistance of a few meters of wire conductor in closed electrical circuit is
22. An electric filament bulb can be worked from
23. Which of the following statement is true both for a series and a parallel D.C. circuit?
24. Conductance is reciprocal of
25. Which of the following quantities remain the same in all parts of a series circuit?

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