Electronic Principles
In a transistor operates at the middle of the load line, an increase in the base resistance will move the Q point

off the load line
down
None of these
nowhere
up

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Electronic Principles
Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?

The voltage remains at one polarity and at a steady level
The voltage remains at one polarity but changes value periodically
The voltage reverses polarity periodically
The voltage causes current to flow in two directions at the same time
None of these

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

The total voltage is less than the sum of the voltages across the resistance and capacitance
The total voltage leads the total current by less than 90 degree
The voltage always has the same amplitude and phase for every part of the circuit
None of these
The total voltage is equal to the sum of the voltages across the resistance and capacitance

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Electronic Principles
The north pole of a magnet is the one:

that would be attracted to the earth's south magnetic pole
that has its molecules arranged in a random pattern
None of these
that would be repelled by the south pole of another magnet
that would be attracted to the earth's north magnetic pole

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