Physics
The magnitude of force acting on a current carrying wire placed in a magnetic field in a direction perpendicular to its length depends on :
- The current flowing in the wire
- The strength of the magnetic field
- The length of the wire
- all of the above
Related Questions
In fleming's left hand rule, the forefinger indicates the direction of :
- force
- current
- motion
- magnetic field
In an electric motor, the energy transformation is from:
- electrical to mechanical
- mechanical to electrical
- chemical to light
- electrical to chemical
The speed of rotation of coil can be increased by :
- decreasing the strength of the magnetic field
- decreasing the area of the coil
- increasing the area of the coil
- decreasing the number of turns in the coil
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