Electro Magnetic Induction And Alternating Currents Question 98

Question: The r.m.s. voltage of domestic electricity supply is 220 volt . Electrical appliances should be designed to withstand an instantaneous voltage of

Options:

A) 220 V

B) 310 V

C) 330 V

D) 440 V

Show Answer

Answer:

Correct Answer: B

Solution:

Peak voltage $ =\sqrt{2}\times 220=311\ V $



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