JAC 12th Model Paper 2022-Physics Live Test [Set-2]

The magnetic field is parallel to a surface then the magnetic flux through will be

SI unit of mutual inductance is

The emf induced in a coil is

Lenz’s law is a consequence of the law of conservation of

The vertical component of earth’s magnetic field at a place is 3 times the horizontal
component the value of angle of dip at this place is

The strength of the earth’s magnetic field is

The angle between geographic meridian and magnetic meridian at a place is

The earth behaves as a magnet with magnetic field pointing approximately from the
geographic

A moving charged particle experiences no force while moving through a uniform
magnetic field

The distance between two parallel current carrying conductors is doubled what will
be the effect on force between the conductors

The magnetic field B at the center of a current-carrying circular loop of radius r is

Cyclotron is used to accelerate

SI unit of magnetic flux is

A charged particle is moving on circular path with velocity v in a uniform magnetic
field B, if velocity of the charged particle is doubled and strength of magnetic field is
halved then radius becomes

The nature of parallel current and anti-parallel currents are

In a Wheatstone bridge if the battery and galvanometer are interchanged then
deflection in galvanometer will

The equivalent resistance of resistors in parallel combination

The resistivity of alloy manganin is

If n cells each of emf E and internal resistance r are connected in parallel then the
total emf and internal resistance will be

The resistivity of material of a conductor depends on

Kirchhoff’s loop rule is based on conservation of

Kirchhoff’s junction rule is based on conservation of

Drift velocity Vd varies with the intensity of the electric field as per the relation

Ohm’s law is followed by

An electric charge q is placed at the center of a cube of side a, the electric flux on
one of its faces will be

ε₀(Epsilon not)

The surface considered for Gauss’s law is called

SI unit of electric flux is

Which one is the not correct expression for energy stored in a capacitor

In a region of constant potential

The value of absolute permittivity of free space is

NOTE: This(^) Sign indicates the power of something.

If a dielectric slab Is introduced in between the two plates of a parallel plate
the capacitor then its capacitance

1V equals to

When an electric dipole is placed in uniform electric field it experiences

Which one of the following is the SI unit of the electric field?

Two charges of equal magnitudes kept at a distance r exert a force F on each other, if
the charges are halved and the distance between them is doubled then the new force
acting on each charge is