Electro Magnetic Induction And Alternating Currents Question 97

Question: In a circuit, the value of the alternating current is measured by hot wire ammeter as 10 ampere. Its peak value will be [MP PET 1996; AMU (Med.) 1999; KCET (Engg./Med.) 2000; CPMT 2003]

Options:

A) 10 A

B) 20 A

C) 14.14 A

D) 7.07 A

Show Answer

Answer:

Correct Answer: C

Solution:

Hot wire ammeter reads rms value of current. Hence its peak value $ =i_{rms}\times \sqrt{2}=14.14\ amp $



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