Question
Physics Question on Moving charges and magnetism
The characteristics of two coil is given below. If the magnetic moment of both coil A and B are equal then choose the correct relation,
| Coil A | Coil B |
|---|---|
| Radius rA=10 cm | rB=20 cm |
| Number of turns NA | NB |
| Current IA | IB |
A
2NAIA = NBIB
B
NAIA = NBIB
C
NAIA = 4NBIB
D
NAIA = 2NBIB
Answer
NAIA = 4NBIB
Explanation
Solution
The correct option is (C): NAIA = 4NBIB