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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?

0.24 W
325 kW
None of these
80 W
0.625 W

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Electronic Principles
What is the phase shift between total current and voltage in the circuit of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm

30 degree
45 degree
75 degree
180 degree
None of these

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Electronic Principles
If a load resistance is 1 kW, a stiff voltage source has a resistance of

Less than 100 k Ohm
More than 100 k Ohm
less than 10 Ohm
At least 10 Ohm
None of these

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Electronic Principles
Silicon atoms combine into an orderly pattern called a

Covalent bond
Crystal
Semiconductor
Valence orbit
None of these

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Electronic Principles
The Thevenin resistance is equal in value to the

Open-load resistance
Half the load resistance
Internal resistance of a Morton circuit
Load resistance
None of these

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Electronic Principles
Doubling the operating frequency of a capacitive circuit:

None of these
multiplies the capacitive reactance by 6.28
cuts the capacitive reactance in half
doubles the amount of a capacitive reactance
has no effect on the capacitive reactance

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