1.
Who experimentally established that an electric current produces a magnetic field?
2.
The SI unit of magnetic field is
3.
The magnetic force on a stationary charged particle is
4.
The magnetic force on a moving charge is maximum when the angle between v and B is
5.
The magnetic force on a moving charge is given by
6.
A positively charged particle enters a uniform magnetic field perpendicular to its velocity. Its path is
7.
The magnetic force on a current-carrying conductor is
8.
The direction of force on a current-carrying conductor is determined by
9.
A charged particle moving parallel to the magnetic field experiences
10.
The radius of circular motion of a charged particle in a magnetic field is
11.
The time period of revolution of a charged particle in a uniform magnetic field depends upon
12.
The magnetic field at the centre of a circular current-carrying loop is
13.
The magnetic field inside a long solenoid is
14.
The magnetic field at the centre of a circular loop increases when
15.
A straight current-carrying conductor passes vertically upward through the plane of paper. The magnetic field lines around the wire will be
16.
The magnetic force always acts
17.
The working principle of a cyclotron is based on
18.
A proton enters a magnetic field into the page with velocity towards the right.
19.
The unit of magnetic flux is
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