1.

An AC generator is connected to an electricappliance. In 10 revolutions of armature, thecurrent in the applience changes direction-(a) 5 times(b) 10 times(c) 20 times(d) 40 times

Answer»

20 is the correct answer of the given question

20 times because it rotates and passes an electric appliance by two times as they were 10 appliances



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