(A) Same
(B) Half
(C) Double
(D) One Fourth
Two parallel wires carrying current in the opposite direction?
(A) Attract each other
(B) Repel each other
(C) Do not attract each other
(D) Get rotated perpendicular to each other
At resonance the value of power factor in an LCR series circuit is?
(A) 0
(B) 1
(C) 3/2
(D) None of the above
Alternative current is converted to direct current by?
(A) Dynamo
(B) Motor
(C) Transformer
(D) Rectifier
Among the following which waves can not be polarized?
(A) Sound waves
(B) Radio waves
(C) X-Rays
(D) Ultraviolet Rays
It is possible to distinguish between transverse and longitudinal waves by studying the property?
(A) Interference
(B) Polarization
(C) Diffraction
(D) None of the above
ERG stands for what?
(A) Electric Retino Graphy
(B) Energy Radio Graphy
(C) Electro Radio Graphy
(D) None of the above
A man inside an artificial satellite feels weightlessness because the force of attraction due to the earth is?
(A) Equal of centripetal force
(B) Zero at the pole
(C) Balance the force of attraction due to the moon
(D) None of the above