Advertisements
Advertisements
Question
A flat coil ABCD is freely suspended between the pole pieces of a U-shaped permanent magnet with the plane of coil parallel to the magnetic field.
When will the couple acting on the coil be
- maximum
- minimum?
Advertisements
Solution
- When plane of a coil is parallel to the magnetic field.
- When plane of coil is normal to the magnetic field.
APPEARS IN
RELATED QUESTIONS
State the rule to determine the direction of a force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it.
State the form of magnetic field lines around a straight current-carrying conductor.
Name one device whose working depends on the force exerted on a current-carrying coil placed in a magnetic field.
The force experienced by a current-carrying conductor placed in a magnetic field is the largest when the angle between the conductor and the magnetic field is:
45°
60°
90°
180°
How will the direction of force be changed, if the current is reversed in the conductor placed in a magnetic field?
State whether a magnetic field is associated or not around a static charge.
Write Fleming’s left hand rule.
When current is parallel to a magnetic field, then force experience by the current-carrying conductor placed in a uniform magnetic field is ____________.
The direction of force on a current carrying conductor in a magnetic field is given by ____________.
Two LED bulbs of 10W and 5W are connected in series. If the current flowing through 5W bulb is 0.005A, the current flowing through 10W bulb is ______.
