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

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

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Electronic Principles
Which one of the following is a statement of KirchhofFs voltage law?

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

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Electronic Principles
A farad is defined as the amount of capacitance necessary for:

changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing
None of these
causing an ac phase shift greater than 90 degree
dissipating 1 W of power
storing 1 V for 1 second

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