Electronic Principles
The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current?

10.3 µA
7.75 µA
None of these
14.8 µA
7.8 µA

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

None of these
The same current flows through every part of a series circuit
The total current in a series circuit is equal to the total voltage multiplied by the total resistance
The total current in a series circuit is equal to the sum of the currents flowing through the individual components in the circuit
The amount of current flow through each part of a series circuit can be different, depending on the resistance of each part and the amount of voltage applied to it

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Electronic Principles
What is a free electron?

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

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