Electro Magnetic Induction And Alternating Currents Question 367
Question: When a magnet is pushed in and out of a circular coil C connected to a very sensitive galvanometer G as shown in the adjoining diagram with a frequency $ \nu $ , then
Options:
A) Constant deflection is observed in the galvanometer
B) Visible small oscillations will be observed in the galvanometer if $ \nu $ is about 50 Hz
C) Oscillations in the deflection will be observed clearly if $ \nu =1 $ or 2 Hz
D) No variation in the deflection will be seen if $ \nu =1 $ or $ \nu =2 $ Hz
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Answer:
Correct Answer: C
Solution:
When frequency is high, the galvanometer may not show deflection.
BETA
