Question

In an ac circuit that delivers constant power at varying p.f., the current is

a.

lowest when p.f. is leading

b.

lowest when p.f. is lagging

c.

lowest when p.f is unity

d.

the same for all power factors

Answer: (c).lowest when p.f is unity

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Q. In an ac circuit that delivers constant power at varying p.f., the current is

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