MHT CET2019Evening ShiftPhysicsMagnetic Effects of CurrentActual
Torque acting on a rectangular coil carrying current ‘i’ situated parallel to magnetic field of current ‘i’ situated parallel to magnetic field of induction ‘B’, having number of turns ‘n’ and area ‘A’ is
Options
- An i A ^ . B ^
- Bn B A i
- Cn i A × B
- Di B A n
Correct answer
C. n i A × B
Step-by-step solution
When a current carrying coil is placed in a magnetic field, the coil experienced a torque given by τ = M × B Where, M = magnetic moment = n i A ∴ τ = n i A × B Where, n = number of turns, i = current flowing in coil A = Area of coil