Electronic Principles
In an intrinsic semiconductor, the number of free electrons

Impossible to say
Equals the number of holes
Is less than the number of holes
Is greater than the number of holes
None of these

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Electronic Principles
Which one of the following statements is true for current flowing in 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
The total current in a parallel circuit is always less than the smallest amount of current
The total current in a parallel circuit is equal to the total voltage multiplied by the total resistance
The same current always flows through every part of a parallel circuit
None of these

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Electronic Principles
The total impedance of a parallel RLC circuit:

is maximum at the resonant frequency
always decreases as the applied frequency increases
None of these
always increases as the applied frequency increases
is equal to the sum of the values of resistance, inductive reactance and capacitive reactance

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