Electronic Principles
What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm?

220 ohm
150 ohm
690 ohm
None of these
445 ohm

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Electronic Principles
Which one of the following statements is true for the currents in a series RC circuit?

The total current is less than the sum of the currents for the resistance and capacitance
The current always has the same amplitude and phase for every part of the circuit
The total current is equal to the sum of the currents for the resistance and capacitance
None of these
The total current is greater than the sum of the currents for the resistance and capacitance

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Electronic Principles
The dielectric constant of a material is a measure of:

the amount of voltage it can withstand before breaking down
the amount of opposition to the current flow
how well the material concentrates electrostatic lines of force
how well the material concentrates magnetic lines of force
None of these

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Electronic Principles
Which one of the following principles best describes the basic operation of a generator?

Current flowing through a conductor generates a magnetic field
Like magnetic poles attract; unlike poles repel
Current is induced in a conductor that is moving through a magnetic field
None of these
Like magnetic poles repel; unlike poles attract

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