Electronic Principles
What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm?

99.3 Ohm
None of these
60 Ohm
250 Ohm
70.7Ohm

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Electronic Principles
Molecule is

None of these
A atom that flows whenever there is an imbalance of electrical charges between two points
A atom that has a shortage of electrons in its outer orbit
A atom that has an excessive number of electrons in its outer orbit
The smallest particle of a substance that retains the properties of that substance

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Electronic Principles
Which one of the following statements most accurately reflects the nature of ac power?

The current in an ac circuit flows in one direction, but changes value periodically
The current in an ac circuit flows in one direction at a steady level
The current in an ac circuit changes direction periodically
None of these
The current in an ac circuit flows in two directions at the same time

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