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Materials and Components

Materials and Components
Which inductor is linear?

Cast iron cored
Iron alloy cored
Sheet steel cored
Air cored

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Materials and Components
The resistance of a photoconductor

Decreases with increase in light intensity
Increases with increase in light intensity
Remains constant
May increase or decrease with increase in light intensity

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Materials and Components
Many compounds also exhibit semiconducting properties.

True
False

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Materials and Components
A vacant electronic state moves in the same direction as would a positive charge carrier.

True
False

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Materials and Components
As the viscosity of a liquid increases, the relaxation time

Decreases
First decreases then increases
Remains constant
Increases

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Materials and Components
Which of the following are true for relative dielectric constant?1. It is dimensionless.2. It is equal to 1 for vacuum.3. It is equal to 1 for all substances.

2 and 3 only
1, 2 and 3
1 and 3 only
1 and 2 only

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