A) \[1.5\times {{10}^{-6}}N-m\]
B) \[1.5\times {{10}^{-8}}N-m\]
C) \[1.5\times {{10}^{+6}}N-m\]
D) \[1.5\times {{10}^{+8}}N-m\]
Correct Answer: B
Solution :
We have, \[M=NIA\] \[B={{\mu }_{0}}nI\] Torque, \[C=MB\] Here, \[C=({{n}_{1}}{{I}_{1}}A)\,({{\mu }_{0}}{{n}_{2}}{{I}_{2}})\] \[=\left( 10\times \frac{21}{44}\times {{10}^{-6}} \right)\,\,\left( 4\times \frac{22}{7}\times {{10}^{-7}}\times {{10}^{3}}\times 2.5 \right)\] \[=1.5\times {{10}^{-8}}N-m\]You need to login to perform this action.
You will be redirected in
3 sec