Physics
How will the direction of force be changed, if the current is reversed in the conductor placed in a magnetic field?
Related Questions
The function of a split ring commutator is to :
- increase the magnetic field
- increase the current
- reverse the direction of the current
- none of the above
Four wires each of length 2 m are bent in the form of four loops P, Q, R and S as shown below. They are suspended in a uniform magnetic field. Each loop carries the same current. Identify the correct statement.
- torque on loop P is maximum.
- torque on loop Q is maximum.
- torque on loop R is maximum.
- torque on loop S is maximum.
What energy conversion does take place during the working of a d.c motor?
A current flows through a wire in a south to north direction and the magnetic field is directed downwards. In what direction will the force act on the wire?