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Electronic Principles

Electronic Principles
Which one of the following devices is most often used for measuring electrical potential difference?

Ohmmeter
Wattmeter
Voltmeter
Ammeter
None of these

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Electronic Principles
The graph of current gain versus collector current indicates that the current gain

None of these
varies enormously
is contant
varies slightly
equals the collector current divided by the base current

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Electronic Principles
If a load resistance is 1 kW, a stiff current source has a resistance of

More than 100 k Ohm
At least 10 Ohm
Less than 10 Ohm
Less than 100 k Ohm
None of these

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Electronic Principles
The equivalent of 1 megohms is:

one-millionth of an ohm
1 k ohm
100,000 ohm
one million ohms
None of these

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Electronic Principles
The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current?

None of these
1750 mA
1.75 mA
175 mA
17.5 mA

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Electronic Principles
A resistor has a rated value of 100 ohm and a tolerance of 10%. What is its minimum and maximum allowable resistance value?

None of these
90 Ohm - 101 ohm
99 Ohm - 102 ohm
98 Ohm - 100.1 ohm
90 Ohm - 110 ohm

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