A) \[\frac{v{{B}^{2}}{{\ell }^{2}}}{R}\]
B) \[\frac{2v{{B}^{2}}{{\ell }^{2}}}{(R+r)}\]
C) \[\frac{v{{B}^{2}}{{\ell }^{2}}}{(R+r)}\]
D) Zero
Correct Answer: C
Solution :
[c] \[F=l\ell B\] \[=\frac{VB\ell }{(R+r)}\ell B\] \[=\frac{V{{B}^{2}}{{\ell }^{2}}}{(R+r)}\]
You need to login to perform this action.
You will be redirected in
3 sec
