A. using a transistor
B. suppressing the harmonics in A.C voltage
C. suppressing half wave of A.C supply by using diode
D. using a Coolidge tube
Related Mcqs:
- In half-wave rectification the output D.C. voltages is obtained across the load for_______________?
A. The negative half cycle of A.C.
B. The positive half cycle of A.C.
C. The positive and negative half cycles
D. Either positive or negative half of A.C. - In full wave rectification the output D.C. voltage across the load is obtained for_____________?
A. The positive half cycle of input A.C.
B. The negative half cycle of input A.C.
C. The complete cycle of input A.C.
D. All of the above. - In a half-wave rectifier the r.m.s. value of the A.C. component of the wave is________________?
A. Equal to D.C. value
B. More than D.C. value
C. Less than D.C. value
D. Zero - When crest of one wave falls over the trough of the other wave this phenomenon is known as________________?
A. polarization
B. constructive interference
C. destructive interference
D. diffraction - Biomass can be converted into fuels by____________________?
A. direct combustion
B. fermentation
C. both A and B
D. none of these - A stationary wave is set up in the air column of a closed pipe. At the closes end of the pipe _____________________?
A. always an node in formed
B. always an antinode is formed
C. neither node nor antinode is formed
D. sometimes a node and sometimes an antinode is formed - An electromagnetic wave consists of _____________________?
A. Electric and magnetic fields moving parallel to each other
B. Magnetic field moving with velocity of light in space
C. Electric field moving with velocity of light
D. Electric and magnetic fields moving perpendicular to each other - When the amplitude of a wave becomes double its energy become_________________?
A. Double
B. Four times
C. One half
D. None time - Wave-like characteristic of electron is demonstrated by______________?
A. Line spectrum of atoms
B. Production of x-rays.
C. Diffraction by crystalline solids
D. Photoelectric effect - Bernoulli’s equation is obtained by applying the law of conservation of ________________?
A. Mass
B. Energy
C. Momentum
D. Fluid
