Magnetism Question 101
The number of turns and radius of cross-section of the coil of a tangent galvanometer are doubled. The reduction factor K will remain the same
[NCERT 1983; MP PMT 2002]
Options:
K
2K
4K
K/4
Show Answer
Answer:
Correct Answer: A
Solution:
$ K=\frac{2RB _{H}}{\mu _{0}N} $ (R = radius, N= number of turns)
BETA
