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Electronic Principles

Electronic Principles
How much power is being dissipated by a 1000 W resistance that has 25 V applied to it?

325 kW
None of these
0.24 W
80 W
0.625 W

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Electronic Principles
The total impedance of a series RLC circuit:

is minimum at the resonant frequency
always decreases as the applied frequency increases
is maximum at the resonant frequency
None of these
always increases as the applied frequency increases

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Electronic Principles
Which one of the following statements regarding ac circuits is correct?

Current and voltages are in phase through a resistor
All of these
None of these
Current leads the voltage through a resistor
Current lags the voltage through a resistor

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Electronic Principles
A flashlight battery has internal resistance of 1W. For what values of load resistance does the flashlight battery appear stiff?

50 Ohm
60 Ohm
None of these
100 Ohm or more
10 Ohm

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Electronic Principles
A typical light switch in your home is a:

knife switch
rotary switch
None of these
momentary push button switch
toggle switch

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Electronic Principles
When the graph of current versus voltage is a straight line, the device is referred to as

Bipolar
Linear
Nonlinear
None of these
Active

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