Magnetic Effects Of Current Question 199

Question: A straight wire of length 0.5 metre and carrying a current of 1.2 ampere placed in a uniform magnetic field of induction 2 Tesla. The magnetic field is perpendicular to the length of the wire. The force on the wire is [CBSE PMT 1992; BHU 1998; DPMT 2001; RPET 2003]

Options:

A) 2.4 N

B) 1.2 N

C) 3.0 N

D) 2.0 N

Show Answer

Answer:

Correct Answer: B

Solution:

$ F=Bil=2\times 1.2\times 0.5=1.2N $