Magnetic Effects Of Current Question 441
Question: An 8 cm long wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis. If the magnetic field inside the solenoid is 0.3 T, then magnetic force on the wire is
Options:
A) 0.14N
B) 0.24 N
C) 0.34 N
D) 0.44N
Show Answer
Answer:
Correct Answer: B
Solution:
[b] $ F=IIB $ Here, $ \theta =90^{o} $ , $ I=10A $ $ I=8,cm=8\times {{10}^{-2}}m $ , $ B=0.3,T $
$ \therefore F=10\times 8\times {{10}^{-2}}\times 0.3\times \sin ,90^{o}=0.24,N $
BETA
