(A) Constructive interference
(B) Destructive interference
(C) Constructive and Destructive interference
(D) Diffraction
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Among following which is not electromagnetic in nature?
(A) Beta rays
(B) Infrared rays
(C) Ultraviolet rays
(D) Gamma rays
The time required for a current to be established in a circuit depends upon the?
(A) Applied potential difference
(B) Magnitude of the current
(C) Inductance only
(D) The inductance and resistance
A dynamo is often set to generate electricity, it actually acts as the source of?
(A) Electrons
(B) EMF
(C) Charge
(D) Magnetic field
Lenz’s law is a consequence of the law of conservation of?
(A) Energy
(B) Charge
(C) Momentum
(D) Lines of force energy
The fact than an electric field is produced in a conductor whenever magnetic lines of force moves across it is referred to as?
(A) Ohm’s law
(B) Lenz’s law
(C) Ampere’s law
(D) Faraday’s law
The time required for a charge particle to make a complete revolution in a magnetic field does not depend upon?
(A) The magnetic field
(B) Its charge
(C) Its energy
(D) Its mass
When a diamagnetic substance is inserted in a current carrying coil. The magnetic field?
(A) Unchanged
(B) Increases
(C) Decreases
(D) First increases then decreases