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:

_1411742429.unknown

_1411743264.unknown

_1411742399.unknown