SSC JE Electrical Engineering 2013 Paper

Question : 101 of 200

Marks: +1, -0

ELECTRICAL

The voltage wave

v = V_m \sin (ωt – 15°)

volts isapplied across an ac circuit. If the current leadsthe voltage by 10° and the maximum value ofcurrent is

I_m

, then the equation of current is

Solution:

v = V_m \sin (ωt – 15°)

volts
If currents leads 10°

I= I_m \sin (ωt -15+10°)

= I_m \sin (ωt -5°)

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