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Computer Science - Electronic Principles

Exercise : Electronic Principles - Section 2
1.
Which one of the following statements most accurately applies to the frequency of a waveform?
The actual frequency of a sine waveform is 1.41 times the working frequency
Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz
The higher the amplitude of a waveform, the higher its frequency
The longer the period of a waveform, the lower its frequency
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
The merging of a free electron and a hole is called
Covalent bonding
Lifetime
Recombination
Thermal energy
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
One henry of inductance is defined as:
the amount of counter emf required to reduce a current to 1 A
the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second
the amount of inductance required to change the frequency of a current by 1 Hz
the number of turns of wire in an inductor multiplied by the amount of current flowing through it
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
The basic unit of measurement for current is the:
volt
watt
ampere
ohm
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?
The voltage remains at one polarity and at a steady level
The voltage remains at one polarity but changes value periodically
The voltage causes current to flow in two directions at the same time
The voltage reverses polarity periodically
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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