Electronic Principles
At room temperature an intrinsic semiconductor has

a few free electrons and holes
many holes
many free electrons
No holes
None of these

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

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
The algebraic sum of currents entering and leaving a point is equal to zero
None of these
The total resistance of a parallel circuit is less than the value of the smallest resistance

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Electronic Principles
Which one of the following statements is true for voltage in a series circuit?

The total voltage in a series circuit is always less than the value of the smallest voltage
None of these
The total voltage in a series circuit is equal to the average value of the individual voltages
The total voltage of a series circuit is equal to the total current divided by the total resistance
The total voltage is equal to the sum of the individual voltages in a series circuit

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