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Materials and Components

Materials and Components
The number of protons in a copper atom are

29
2
9
11

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Materials and Components
The number of protons in a silicon atom are

8
4
12
14

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Materials and Components
Nickel is a non-magnetic material.

False
True

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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.

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

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Materials and Components
For making a capacitor it is better to have a dielectric having

Permittivity which is neither high nor low
Low permittivity
Permittivity same as that of air
High permittivity

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Materials and Components
Electric dipole moment is expressed in debye unit.

False
True

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