Electronic Principles MCQ Questions & Answers | Computer Science

A. The actual frequency of a sine waveform is 1.41 times the working frequency

B. Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz

C. The higher the amplitude of a waveform, the higher its frequency

D. The longer the period of a waveform, the lower its frequency

E. None of the above

A. Covalent bonding

B. Lifetime

C. Recombination

D. Thermal energy

E. None of the above

A. the amount of counter emf required to reduce a current to 1 A

B. the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second

C. the amount of inductance required to change the frequency of a current by 1 Hz

D. the number of turns of wire in an inductor multiplied by the amount of current flowing through it

E. None of the above

A. volt

B. watt

C. ampere

D. ohm

E. None of the above

A. The voltage remains at one polarity and at a steady level

B. The voltage remains at one polarity but changes value periodically

C. The voltage causes current to flow in two directions at the same time

D. The voltage reverses polarity periodically

E. None of the above

A. An atom that contains more electrons than neutrons

B. An atom that contains more protons than neutrons

C. An atom that contains more electrons than protons

D. An atom that contains more protons than electrons

E. None of the above

A. down

B. up

C. nowhere

D. off the load line

E. None of the above

A. The flow of charged particles through a material

B. The smallest electrically charged particle

C. Trie force that causes electrons to flow

D. The number of free electrons in an atom

E. None of the above

A. 10.738

B. 0.707

C. 1.5

D. 0.575

E. None of the above

A. is minimum at the resonant frequency

B. always increases as the applied frequency increases

C. always decreases as the applied frequency increases

D. is maximum at the resonant frequency

E. None of the above