Advertisements
Advertisements
प्रश्न
State whether a magnetic field is associated or not around a static charge.
Advertisements
उत्तर
A static charge is not associated with a magnetic field around it.
APPEARS IN
संबंधित प्रश्न
State Fleming’s left hand rule.
Observe the following figure:
If the current in the coil A is changed, will some current be induced in the coil B? Explain.
Draw a sketch to show the magnetic lines of force due to a current-carrying straight conductor.
A current-carrying conductor is held in exactly vertical direction. In order to produce a clockwise magnetic field around the conductor, the current should passed in the conductor:
(a) from top towards bottom
(b) from left towards right
(c) from bottom towards top
(d) from right towards left
Name one device whose working depends on the force exerted on a current-carrying coil placed in a magnetic field.
Name three factors on which the magnitude of force on a current carrying conductor placed in a magnetic field depends and state how does the force depend on the factors stated by you.
How will the direction of force be changed, if the current is reversed in the conductor placed in a magnetic field?
Differentiate between conductors and insulators.
State under what conditions force acting on a current carrying conductor which is freely suspended in a magnetic field can be Zero.
A copper wire is held between the poles of a magnet
The current in the wire can be reversed. The pole of the magnet can also be changed over. In how many of the four directions shown can the force act on the wire?
