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Electronic Principles

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

7200 A
None of these
0.5A
180 A
0.083333333333333

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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
99 Ohm - 102 ohm
90 Ohm - 101 ohm
90 Ohm - 110 ohm
98 Ohm - 100.1 ohm

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Electronic Principles
A device that converts light energy to electrical energy is called a:

photo transistor
solar cell
thermocouple
photodiode
None of these

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

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

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Electronic Principles
The value of a capacitor can be made larger by:

decreasing the area of the plates
increasing the voltage applied to the plates
None of these
increasing the frequency of the applied voltage
increasing the area of the plates

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Electronic Principles
An intrinsic semiconductor has some holes in it at room temperature. What causes these holes?

Doping
Free electrons
Thermal energy
None of these
Valence electrons

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