Alternating Current MCQs

A. Fluctuates off and on

B. Varies in magnitude alone

C. Changes its direction again and again

D. Changes its magnitude harmonically and reverses its direction of flow after regularly recurring intervals.

A. Magnetic field

B. Electric field

C. Electromagnetic force

D. Artificial gravitational field

A. 3.00 x 108 m/s

B. 3.00 x 10 m/s

C. 300 x 108 m/s

D. 3.00 x 8 m/s

A. λ-rays

B. Positive rays

C. Cathode rays

D. More than sound waves

A. Perpendicular to the electric field

B. Perpendicular to both electric and magnetic field

C. Perpendicular to the magnetic field

D. Parallel to electric and magnetic field

A. Electric and magnetic fields moving parallel to each other

B. Magnetic field moving with the velocity of light in space

C. Electric field moving with the velocity of light

D. Electric and magnetic fields moving perpendicular to each other

A. Energy

B. Momentum

C. Mass

D. Heat

A. Sound waves

B. Electromagnetic waves

C. Radio waves

D. Modulated waves

A. Stationary

B. Longitudinal

C. Transverse

D. All the above

A. f0=ω0/2π=1/2π√LC

B. ω=ω0=1/√LC

C. 1000 Hz

D. 100 Hz