Electronic Principles
At cut off, the Q point is at

None of these
lower end of the load line
upper end of the load line
middle of the load line
infinity

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Electronic Principles
The total impedance of a parallel RLC circuit:

always decreases as the applied frequency increases
None of these
is maximum at the resonant frequency
always increases as the applied frequency increases
is equal to the sum of the values of resistance, inductive reactance and capacitive reactance

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

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

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