Electronic Principles
The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor?

0.25 µA
350 µA
300 µA
None of these
250 µA

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

The total voltage is equal to the sum of the voltages across the resistance and capacitance
None of these
The total voltage is greater than the sum of the voltages across the resistance and capacitance
The total voltage is less than the sum of the voltages across the resistance and capacitance
The voltage always has the same amplitude and phase for every part of the circuit

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Electronic Principles
What is a negative ion?

An atom that contains more electrons than protons
None of these
An atom that contains more protons than electrons
An atom that contains more electrons than neutrons
An atom that contains more protons than neutrons

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