AC Numericals
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Transcript of AC Numericals
Ques1:
Ques2:
We can write as
Ques3:
Ques4:
Transforming this to time domain
Ques5:
Ques6:Find the Sum of five emfs
Ques7:
Ques8:An emf is given by . Determine (a) maximum value (b) rms value (c) frequency (d) value of emf at instant t=0.001 sec.
Ques9:An alternating current of frequency 60 Hz has a maximum value of 12 A. Write down the equation for instantaneous value. Find (i) the value of current after 1/360 second and (ii) the time taken to reach 9.6 A for the first time.
Ques10:An alternating current of frequency 60 Hz has a maximum value of 12 A. Write down the equation for instantaneous value. Find (i) the value of current after 1/360 second and (ii) the time taken to reach 9.6 A for the first time.
Ques11:Find the average and rms values of the resultant current waveform composed of dc current of 10 A and a sinusoidal current of peak value of 10 A.
Ques12:
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