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

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

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Electronic Principles
For a pure capacitor:

ac current leads the voltage by 90 degree
ac current and voltage are exactly in phase
None of these
ac current is converted to dc voltage
ac current lags the voltage by 90 degree

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Electronic Principles
What is the difference between a conductor and an insulator?

The difference between conductors and insulators depends on how they are used
An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all
An insulator allows current to flow much easier than a conductor does
None of these
A conductor allows current to flow much easier than an insulator does

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