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

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

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Electronic Principles
The rms value of a sine waveform is:

equal to 1.41 times the peak amplitude
equal to 0.707 times the peak amplitude
the time required to complete one full cycle
the number of cycles completed in one second
None of these

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Electronic Principles
Which one of the following statements applies to common auto batteries?

None of these
Auto batteries are secondary wet-cell batteries
Auto batteries are primary dry-cell batteries
Auto batteries are primary wet-cell batteries
Auto batteries are secondary dry-cell batteries

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Electronic Principles
One henry of inductance is defined as:

the amount of inductance required to change the frequency of a current by 1 Hz
None of these
the amount of counter emf required to reduce a current to 1 A
the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second
the number of turns of wire in an inductor multiplied by the amount of current flowing through it

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