We know that a capacitor does not allow of direct current through it because the gap between the two plates of capacitor offers an infinite resistance. when an alternating voltage is applied across a capacitor, the capacitor plates are alternately ...
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Use of a.c. voltage is preferred over d.c. voltage on account of the following reasons: (i) An a.c generator is easy to operate and maintain. So we prefer to use a.c. voltage. (ii) Using a Transformer voltage of a.c supply ...
A material suitablefor making core of a transformer should have (i) a narrow hysteresis curve so as to minimise energy dissipation during each magnetisation cycle and (ii) a high resistivity to lower eddy current losses. Class 12 Physics Chapter 7 ...
Energy loss due to eddy currents and hysteresis loss. Class 12 Physics Chapter 7 Alternating current Session 2024-2025.
The frequency of alternating voltage. Class 12 Physics Chapter 7 Alternating current Session 2024-2025.