Magnetic Effects Of Current Question 188
Question: A 100 turns coil shown in figure carries a current of 2 amp in a magnetic field $ B=0.2,Wb/m^{2} $ . The torque acting on the coil is [MP PET 1997]
Options:
A) 0.32 Nm tending to rotate the side AD out of the page
B) 0.32 Nm tending to rotate the side AD into the page
C) 0.0032 Nm tending to rotate the side AD out of the page
D) 0.0032 Nm tending to rotate the side AD into the page
Show Answer
Answer:
Correct Answer: A
Solution:
$ \tau =NBiA=100\times 0.2\times 2\times ( 0.08\times 0.1 )=0.32N\times m $ Direction can be found by Fleming’s left hand rule.
BETA
