MATERIALS AND COMPONENTS QUIZ

The number of protons in a copper atom are

29

2

11

9

TRUE ANSWER : ?
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The residual resistivity of a binary alloy at 0 K is

Difference of residual resistivities of component metals

Dependent on the concentration of minor component in the alloy

Product of residual resistivities of component metals

Sum of residual resistivities of component metals

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Above a certain temperature, the specific heat of a metal becomes constant. This temperature is called

Curie temperature

Transition temperature

Neel temperature

Debye temperature

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Which inductor is linear?

Iron alloy cored

Air cored

Cast iron cored

Sheet steel cored

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A leakage capacitor can be represented by a capacitance C and resistance R in parallel C.

True

False

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The merger of hole and free electron is called

Free electrons

Covalent bonding

Recombination

Thermal energy

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The phenomenon of dielectric hysteresis occurs with

AC

Both AC and DC

None of these

DC

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Piezoelectricity means the slight change in dimensions of a specimen when an electric field is applied.

True

False

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Wood is a diamagnetic material.

False

True

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Which inductor is used at high frequencies?

Ceramic cored

Cast iron cored

Sheet steel cored

Iron alloy cored

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