Magnetic Effects Of Current Question 215

Question: If a wire of length 1 meter placed in uniform magnetic field 1.5 Tesla at angle $ 30^{o} $ with magnetic field. The current in a wire 10 amp. Then force on a wire will be [RPET 2001]

Options:

A) 7.5 N

B) 1.5 N

C) 0.5 N

D) 2.5 N

Show Answer

Answer:

Correct Answer: A

Solution:

$ \Rightarrow F={{10}^{-7}}\times \frac{2\times 10\times 2}{( 10\times {{10}^{-2}} )}\times 2=8\times {{10}^{-5}}N $