1.
Determine the current flowing through a circular loop of radius 2 m if the magnetic field at its centre is π tesla.
2.
What is the maximum force acting on a positive charge particle moving with velocity vector v in the uniform magnetic field vector B?
3.
How can a glavanometer be converted in to a voltmeter?
4.
To convert a galvanometer into an ammeter, we connect
5.
Two ammeters one 10 A range and another 5 A range are given. Which one will have low shunt value?
6.
Two voltmeters, one 5 V and another 3 V range are given. Which one will have high resistance?
7.
The magnetic field at the centre of solenoid is
8.
The direction of current in two long parallel wire is in opposite directions. The nature of force between them is
9.
Two long parallel wires carryig current will exprience magnetic force. If current equal to 1 A and seperation between wires is 1 m, then the magnitude of force on 1 m length ofany one wire is equal to
10.
If the angle between velocity of moving charge and uniform magnetic field is π/6, then the path of the moving particle will be
11.
The radius of circular path is r amd charge q with mass m moving with velocity vector v in the dot magnetic field. Th radius is given by
12.
On what factors time period of a charge q moving with velocity vector v in the cross magnetic field does not depend?
13.
The SI unit of permeability in magnetic field is
14.
The current in a wire flows from North to South in a horizontal plane. The direction of magnetic field at a point at distance r above the wire will be
15.
The magnetic field at the centre of a semicircular wire of radius r carrying current I clockwise is
16.
The line integral of magnetic field around a closed loop is μ₀ times the current enclosed by the loop. This law is related with
17.
A sqare (each side a) loop carries current I anticlockwise having N turns. The magnitude and direction of dipole Moment is
18.
When plane of the coil is parallel to magnetic field, the torque acting on the moving coil is
19.
The current sensitivity of a moving coil galvanometer can be increased by
20.
The voltage sensitivity of a moving coil galvanometer is the
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