(i) Power factor is maximum at 1 when either the a.c. circuit is pure resistive circuit or is in resonance condition. (ii) Power factor is minimum at zero when a.c. circuit is either pure inductive or pure capacitive or a ...
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As voltage is leading the current by π/2 hence power factor cos Ø = 0 and power dissipation in the circuit is zero. Class 12 Physics Chapter 7 Alternating current Session 2024-2025.
It is clear that current and voltage are in same phase, hence, power factor cos Ø = 1. ∴ Power = Vrms Irms = 1/2 VmIm = 1/2 × 200 × 10 = 1000 W. Class 12 Physics Chapter 7 ...
Wattless current is that which does not dissipate power although thre is a flow of current in the circuit. Class 12 Physics Chapter 7 Alternating current Session 2024-2025.
For an ideal inductor average power over full cycle of the a.c. viltage source is zero. Class 12 Physics Chapter 7 Alternating current Session 2024-2025.