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Computer Science - Electronic Principles

Exercise : Electronic Principles - Section 4
21.
Which one of the following statements is true for voltage in a parallel circuit?
The total voltage in a parallel circuit is equal to the average value of the individual voltages
The total voltage in a parallel circuit is always less than the value of the smallest voltage
The total voltage is equal to the sum of the voltages across the individual branches in a parallel circuit
The total voltage of a parallel circuit is the same as the voltages across each branch
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
The dielectric constant of a material is a measure of:
the amount of voltage it can withstand before breaking down
how well the material concentrates electrostatic lines of force
the amount of opposition to the current flow
how well the material concentrates magnetic lines of force
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
What is the inductive reactance of a 2-H coil operating at 60 Hz?
754 Ohm
30 Ohm
60 Ohm
120 Ohm
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
When operating above its resonant frequency, a series RLC circuit has the characteristics of a:
series RL circuit
series RC circuit
series RLC circuit operated below its resonant frequency
purely resistive circuit
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
What is the primary difference between primary and secondary cell batteries?
Primary-cell batteries can be recharged and used many times, whereas secondary-cell batteries cannot be properly recharged
Secondary-cell batteries can be recharged and used many times, whereas primary-cell batteries cannot be properly recharged
Primary-cell batteries use chemical cells, whereas secondary-cell batteries use an alternative energy source, such as thermal or magnetic energy, to supplement their outputs
Primary-cell batteries must be recharged at a much slower rate that secondary-cell batteries
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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