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All Q&A
1

Prove that current is purely resistive circuit is in phase with applied A.C. voltage and current purely capacitive circuit leads applied voltage by 900 and draw their waveform.

22 June, 2022
A pure resistive circuit is shown in Fig. 12(a) contain a pure resistance R connected across an AC sinusoidal voltage source. The instantaneous value of an alternating source voltage is given by
2

State and explain Biot – Savart law.

22 June, 2022
This law was deduced from a number of experiments on the effect of current carrying conductor on permanent magnets such as the compass needle experiment of oersted.
3

State Ampere’s Circular law.

22 June, 2022
Ampere’s circular law states that the line integral of the tangential component of the magnetic field around a closed path is equal to the current enclosed by the path.