Question

1. The peak voltage of an ac sine wave is 100 V. Find the instantaneous voltage at 0°, 30°, 60°, 90°, 135°, and 245°. Plot these points and draw the sine wave voltage. 2. If an ac voltage wave has an instantaneous value of 90 V at 30°, find the peak value. 3. An electric stove draws 7.5 A from a 120 V dc source. (a) What is the maximum value of an alternating current which will produce heat at the same rate? (b) Find the power drawn from the ac line. 4. Calculate (a) V, (b) Vp-p, (c) T, and (d) f for the sine wave voltage in the figure. 54 ?V 0 1 2 t, ?s

          1. The peak voltage of an ac sine wave is 100 V. Find the instantaneous voltage at 0°, 30°, 60°, 90°, 135°, and 245°. Plot these points and draw the sine wave voltage.
2. If an ac voltage wave has an instantaneous value of 90 V at 30°, find the peak value.
3. An electric stove draws 7.5 A from a 120 V dc source. (a) What is the maximum value of an alternating current which will produce heat at the same rate? (b) Find the power drawn from the ac line.
4. Calculate (a) V, (b) Vp-p, (c) T, and (d) f for the sine wave voltage in the figure.
54 ?V
0
1
2 t, ?s

1. The peak voltage of an ac sine wave is 100 V. Find the instantaneous voltage at 0°, 30°, 60°, 90°, 135°, and 245°. Plot these points and draw the sine wave voltage.
2. If an ac voltage wave has an instantaneous value of 90 V at 30°, find the peak value.
3. An electric stove draws 7.5 A from a 120 V dc source. (a) What is the maximum value of an alternating current which will produce heat at the same rate? (b) Find the power drawn from the ac line.
4. Calculate (a) V, (b) Vp-p, (c) T, and (d) f for the sine wave voltage in the figure.
54 ?V
0
1
2 t, ?s

Added by Francisco R.

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