Electrostatics and Semiconductors

Electrostatics and Semiconductors

10th - 12th Grade

18 Qs

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Electrostatics and Semiconductors

Electrostatics and Semiconductors

Assessment

Quiz

Physics, Science

10th - 12th Grade

Medium

Created by

Param Parekh

Used 5+ times

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18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If Np and Ne be the number of holes and electrons for conduction in an extrinsic semiconductor, then _

Np>Ne

Np<Ne

Np=Ne

Depends on the nature of dopant

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Energy bands in solids are a consequence of _____.

Heisenberg's Uncertainty Principle

Einstein's Photoelectric effect

Pauli's Exclusion Principle

Avogadro's Hypothesis

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

n number of electric fields are acting on a point P located in 3-dimensional space.The resultant electric field 'E' is given by __.

Geometric mean of individual electric fields

Vector sum of individual electric fields

Harmonic mean of individual electric fields

Algebraic sum of individual electric fields

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Two point charges +3 μC and +8 μC repel each other with a force of 40 N. If a charge of -5 μC is added to each of them, then the force between them will become

-10 N

+10N

+20N

None of these

5.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

A cylinder of radius R and length L is placed in a uniform electric field E parallel to the cylinder axis. The total Flux for the surface of the cylinder is given by

2 π R²E

π R²/E

( π R²/ π R)/ E

Zero

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

ABC is an equilateral triangle. Charged +q are placed at each corner. The electric field intensity at O will be

__1__q__

4 πε0

q/(4 π ε0 r)

Zero

3q/(4 π ε0 r²)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A proton and an electron are placed in a uniform electric field

The electric forces acting on them will be equal

The magnitude of the forces will be equal

Their accelerations will be equal

The magnitude of their accelerations will be equal

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