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Electronic Principles

Electronic Principles
A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation?

200 mW
10 mW
300 mW
None of these
20 mW

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Electronic Principles
How many types of flow are there in a semiconductor?

2
None of these
3
1

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Electronic Principles
The direction of conventional current flow is:

from neutral to positive
None of these
from negative to positive
from left to right
from positive to negative

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Electronic Principles
Silicon atoms combine into an orderly pattern called a

Semiconductor
Valence orbit
Crystal
None of these
Covalent bond

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

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

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Electronic Principles
Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating?

P = PR
I = P/E
R = E2/P
None of these
P = E2/R

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