CLOSTRIDIUM QUIZ | EXAMIANS

A characteristic property of crystal is its periodicity of structure.

False

True

TRUE ANSWER : ?
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Ferrimagnetic materials have anti parallel orientation of equal moments of permanent dipoles.

True

False

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The resistance of a photoconductor

Decreases with increase in light intensity

May increase or decrease with increase in light intensity

Remains constant

Increases with increase in light intensity

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The rule that resistivity of conductors can be separated into two parts viz. temperature independent and temperature dependent is known as

Curie rule

Onne’s rule

Matthiessen’s rule

Debye rule

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The phenomenon of dielectric hysteresis occurs with

None of these

Both AC and DC

DC

AC

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

False

True

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Hall effect is observed in a specimen (metal or semi conductor) when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is

Normal to both current and magnetic field

In the same direction as current

None of these

In a direction anti parallel to magnetic field

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With increase in temperature, the electrical conductivity would

Increase in metals but decrease in intrinsic semiconductor

Decrease in metals but increase in intrinsic semiconductor

Decrease in metals as well as in intrinsic semiconductor

Increase in metals as well as in intrinsic semiconductor

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For making a capacitor it is better to have a dielectric having

Permittivity which is neither high nor low

Low permittivity

High permittivity

Permittivity same as that of air

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Many compounds also exhibit semiconducting properties.

True

False

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