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Electronic Principles

Electronic Principles
How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source?

0.41666666666667
0.955 A
2.02 A
None of these
0.02 A

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Electronic Principles
A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have?

None of these
550 Ohm
400 Ohm
310 Ohm
410 Ohm

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Electronic Principles
Inductive reactance is measured in units of:

amperes per second
henrys
Ohm
None of these
volts per second

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Electronic Principles
The Thevenin resistance is equal in value to the

Load resistance
None of these
Open-load resistance
Half the load resistance
Internal resistance of a Morton circuit

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Electronic Principles
What is the inductive reactance of a 0.1-H coil that is operating at 1000 Hz?

None of these
100 Ohm
628 Ohm
444 Ohm
Less than 1 Ohm

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Electronic Principles
The emitter diode is usually

Nonconducting
Reverse-biased
Forward-biased
Operating in the breakdwon region
None of these

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