A current carryingcoil is placed with its axis perpendicular to N-S direction. Let horizontal component of earth's magnetic field be `H_(0)` and magnetic field inside the loop is H. If a magnet is suspended inside the loop, it makes angle `theta` with H. Then `theta`=

Options

A. `tan ^(-1)((H_(0))/(H))`
B. `tan^(-1)((H)/(H_(0)))`
C. `cosec ^(-1) ((H)/(H_(0)))`
D. `cot^(-1)((H_(0))/(H))`

Answer

a

Explanation

(a) `tan theta=(H_(0))/(H) theta=tan^(-1)((H_(0))/(H))`