Electro Magnetic Induction And Alternating Currents Question 451
Question: is a circular loop of radius r and resistance R. A variable magnetic field of induction is established inside the coil. If the key (K) is closed, the electrical power developed right after closing the switch is equal to.
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: D
Solution:
At , ,