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Computer Science - Electronic Principles

Exercise : Electronic Principles - Section 1
21.
The knee voltage of a diode is approximately equal to the
Applied voltage
Barrier potential
Breakdown voltage
Forward voltage
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have?
310 Ohm
400 Ohm
410 Ohm
550 Ohm
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
The rms value of a sine waveform is:
the number of cycles completed in one second
the time required to complete one full cycle
equal to 0.707 times the peak amplitude
equal to 1.41 times the peak amplitude
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Which one of the following is a direct statement of Ohm's law?
The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it
The total resistance of a parallel circuit is less than the value of the smallest resistance
The algebraic sum of voltages in a loop is equal to zero
The algebraic sum of currents entering and leaving a point is equal to zero
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
A high-pass filter:
passes lower-frequency signals and reduces higher-frequency signals
passes higher-frequency signals and reduces lower-frequency signals
has no effect on ac signals
increases the level of all frequencies by a significant amount
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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