Electronic Principles
Which one of the following is a direct statement of Ohm's law?

None of these
The algebraic sum of currents entering and leaving a point is equal to zero
The total resistance of a parallel circuit is less than the value of the smallest resistance
The algebraic sum of voltages in a loop is equal to zero
The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it

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Electronic Principles
The period of a waveform is:

equal to 0.707 times the peak amplitude
the time required to complete one full cycle
None of these
the time required for the voltage to rise from 10% to 90% of the peak amplitude
the number of cycles completed in one second

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Electronic Principles
A high-pass filter:

increases the level of all frequencies by a significant amount
passes higher-frequency signals and reduces lower-frequency signals
passes lower-frequency signals and reduces higher-frequency signals
has no effect on ac signals
None of these

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Electronic Principles
One henry of inductance is defined as:

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

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