Question # 1

In gases, the charge carriers are:

Choose an answer

Electrons

Positive ions

Negative ions

Both A and C

Both A and B

The rate at which the free electrons pass through any section of a metallic wire from right to left is:

Choose an answer

Greater than the speed at which they pass from left to right

Less than the speed at which they pass from left to right

The same speed at which they pass from left to right

Any of above

None of them

Xerography means:

Choose an answer

Dry writing

Wet writing

Poor writing

Excellent writing

Both (A) and (B)

Tick the correct statement:

Choose an answer

Both the potential and potential difference is scalars

Potential is a scalar but potential difference is a vector

Both are vectors

Potential is vector but potential difference is scalar

None of these

The earth’s potential and potential at infinity are taken:

Choose an answer

Equal

Zero

First is greater than the second

Second is greater than the first

Both (A) and (B)

Most practical application of electricity involve

Choose an answer

Charges at the rest

Charges in the motion

Electrons at rest

Atoms in motion

Molecules in motion

An important part of photocopier is:

Choose an answer

Toner cartridge

Deflection plates

Charging electrode

Print head

None of these

The quantity having the same unit as that of emf is:

Choose an answer

Force

Energy

Potential

Current

Charge

The conventional current is the name given to current due to flow of:

Choose an answer

Positrons

Positive charges

Negative charges

Both (A) and (C)

None of these

Another mean of electric potential energy per unit charge is given by:

Choose an answer

Electric intensity

Potential gradient

Electric Flux

Potential difference

None of these

In a metal, the valence electrons are:

Choose an answer

Attach to individual atoms

Not attached to individual atoms

Free to move within the metal

Both (A) and (C)

Both (B) and (C)

In case of metallic conductors, the charge carriers are

Choose an answer

Protons

Electrons

Antiprotons

Positrons

Both A and B

The term drift velocity is used when the ends of a wire are:

Choose an answer

Connected to a laser source

Connected to a voltage source

Not connected to a voltage source

At different values of potential

Both (B) and (D)

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:

Choose an answer

Cylinder

Box

Sphere

Circle

Rectangle

In a metal, the valence electrons are:

Choose an answer

Attached to individual atoms

Not attached to individual atoms

Free to move within the metal

Both A and B

Both A and C

An electric field is generated along the wire when:

Choose an answer

Its resistance is very high

A constant potential is maintained across the wire

Net current through the wire is zero

A constant potential difference is maintained across the wire

Either (A) or (D)

More Classes

Other Links

ECAT Physics Chapter 13 Current Electricity Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer