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Electronic Principles

Electronic Principles
Most AC power is obtained from:

generators
lightning
oscillators
batteries
None of these

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Electronic Principles
The equivalent of 1 kV is:

None of these
100 mV
1000 V
1000 mV
1.00 V

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Electronic Principles
How much current flows through a 60-W light bulb that is operating at 120 V?

180 A
0.083333333333333
0.5A
None of these
7200 A

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Electronic Principles
A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage?

30 V
None of these
24 V
12 V
18 V

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Electronic Principles
Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage?

None of these
170 V
100 V
180 V
120 V

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Electronic Principles
The merging of a free electron and a hole is called

Thermal energy
Lifetime
Covalent bonding
Recombination
None of these

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