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Electronic Principles

Electronic Principles
Who invented the first junction transistor?

Shockley
Fisher
Smith
None of these
Gomes

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Electronic Principles
Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff?

100 Ohm
30 Ohm
10 Ohm
20 Ohm
None of these

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Electronic Principles
To get the Norton current, you have to

Open the voltage source
Short the load resistor
Short the voltage source
None of these
Open the load resistor

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Electronic Principles
Most AC power is obtained from:

lightning
generators
None of these
oscillators
batteries

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Electronic Principles
What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm?

690 ohm
150 ohm
220 ohm
445 ohm
None of these

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Electronic Principles
The rotating coil of wire in an electric motor is called the:

None of these
armature
brush
commutator
loop

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