Electronic Principles
What is a free electron?

An electron that has no electrical charge
An electron that costs nothing
An electron that has twice the amount of charge of a normal electron
None of these
An electron that has been freed from its parent atom

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Electronic Principles
Which one of the following statements is true for current flowing in a parallel circuit?

None of these
The total current in a parallel circuit is equal to the total voltage multiplied by the total resistance
The total current in a parallel circuit is always less than the smallest amount of current
The same current always flows through every part of a parallel circuit
The amount of current flow through each branch of a parallel circuit can be different, depending on the resistance of each branch part and the amount of voltage applied to it

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Electronic Principles
One henry of inductance is defined as:

None of these
the amount of inductance required to change the frequency of a current by 1 Hz
the number of turns of wire in an inductor multiplied by the amount of current flowing through it
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 amount of counter emf required to reduce a current to 1 A

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