A) \[I\propto \tan \phi \]
B) \[I\propto \phi \]
C) \[I\propto {{\phi }^{2}}\]
D) \[I\propto 1/\phi \]
Correct Answer: B
Solution :
Current flowing in moving coil galvanometer is given by \[I=\frac{C}{BAN}\phi \]where \[C\] is deflecting couple, \[B\] is magnetic field, \[A\] is area of the coil, \[N\] is number of turns and \[\phi \] is the angle through which coil. rotates. Hence, \[I\propto \phi \]You need to login to perform this action.
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