Chapter 16 - Alternating Current - 4


Physics Class 12
1. The magnitude of r.m.s value of voltage can be expressed as:




Physics Class 12
2. An AC voltmeter reads 220v its peak value is:




Physics Class 12
3. In AC circuits current and voltage is controlled by a:




Physics Class 12
4. The flow of DC current may be opposed by:




Physics Class 12
5. A device that allows only the continuous flow of AC through a circuit is:




Physics Class 12
6. An Ac continuously flows through the plates of a capacitor because of:




Physics Class 12
7. The opposition offered by a capacitor to the flow of an AC is called:




Physics Class 12
8. The reactance of magnitude of Xc of a capacitor joined across a alternating source can be found by a relation:




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