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Electronic Principles

Electronic Principles
Assuming 100% efficiency, what is the power being consumed at the secondary winding of the transformer described in question 91?

200 W
None of these
20 W
1000 W
100 W

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Electronic Principles
A dielectric material is:

a good conductor
a poor conductor of electrostatic fields
a good conductor of magnetic fields
a good insulator
None of these

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

thermocouple
electric device
None of these
solar cell
chemical cell

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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?

90 Ohm - 101 ohm
None of these
99 Ohm - 102 ohm
98 Ohm - 100.1 ohm
90 Ohm - 110 ohm

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Electronic Principles
The direction of conventional current flow is:

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

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Electronic Principles
In an intrinsic semiconductor, the number of free electrons

Equals the number of holes
Is greater than the number of holes
Impossible to say
None of these
Is less than the number of holes

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