The value of power at any instant is given by the product of the voltage and current at that instant, i.e. the instantaneous power, p=vi, as shown by the broken lines (see figures). Which of the following statement is true? Average power

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7.) Choose the correct answer
The value of power at any instant is
given by the product of the voltage
and current at that instant, i.e. the
instantaneous power, p=vi, as shown
by the broken lines (see figures).
Which of the following statement is
true?
Average
power
Pure resistance-average
power VI
(a)
#W
Pure capacitance-average
power 0
Pure inductance-average
power O
(b)
(c)
For a purely inductive AC circuit, the
average power is maximum.
For a purely capacitive AC circuit, the
average power is zero
For a purely inductive AC circuit, the
average power is zero.
For an R-C, R-L, R-L-C series AC
circuits, the average power is P =
Vrms*Irms*cosp watts or P =
Irms^2R watts (W),
For a purely resistive a.c. circuit, the
average power dissipated, P, is given
by P = VI, I^2R = V^2/R watts (V and I
being RMS values)
For a purely capacitive AC circuit, the
average power is maximum.
Transcribed Image Text:The value of power at any instant is given by the product of the voltage and current at that instant, i.e. the instantaneous power, p=vi, as shown by the broken lines (see figures). Which of the following statement is true? Average power Pure resistance-average power VI (a) #W Pure capacitance-average power 0 Pure inductance-average power O (b) (c) For a purely inductive AC circuit, the average power is maximum. For a purely capacitive AC circuit, the average power is zero For a purely inductive AC circuit, the average power is zero. For an R-C, R-L, R-L-C series AC circuits, the average power is P = Vrms*Irms*cosp watts or P = Irms^2R watts (W), For a purely resistive a.c. circuit, the average power dissipated, P, is given by P = VI, I^2R = V^2/R watts (V and I being RMS values) For a purely capacitive AC circuit, the average power is maximum.
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