ELECTRIC CHARGES & FIELDS

A visually engaging image of electric field lines, electrostatic forces, and charged particles in action, depicting concepts from electrostatics and physics education.

Master the Basics of Electric Charges & Fields

Test your knowledge on the fundamental concepts of electric charges and fields with our engaging quiz! Whether you are a student looking to reinforce your understanding or simply someone passionate about physics, this quiz will challenge your comprehension and ignite your curiosity.

Key Features:

Multiple choice questions covering a range of topics
Instant feedback on your answers
Great for exam preparation or self-assessment

15 Questions4 MinutesCreated by ChargingElectron476

The electrostatic force between two charges is 100 N. If a medium of dielectric constant 10 is introduced between the charges, then the magnitude of electrostatic force between the charges will be

100 N

10 N

50 N

20 N

If two charges q1 & q2 are such that q1q2<0, then the nature of electrostatic forces between them will be

Attractive

Repulsive

Can't be determined

None of the above

If both the magnitudes of two charges and the distance between them are reduced to half then the electrostatic force between them

Increases 4 times

Decreases 4 times

Becomes double

Remains unchanged

Fig. Shows three different pattern of electric field lines. In each pattern, a proton is released from rest at point P and then accelerated towards the point Q by the electric field. Rank the patterns according to the linear momentum of the proton when it reaches Q, greatest first. 111

A,b, c

C,ba

B,a,c

C,a,b

Three charges +q, +q & -2q are placed at the vertices of an equilateral triangle. What is the dipole moment of the system? 11122

P√3

P√2

A proton moves at constant velocity enters the region between two charged plates, as shown below 2211

Which of the paths shown correctly indicates the proton’s trajectory after leaving the region between the charged plates?

The electric field required to keep a water drop of mass m just suspended, when charged with one electron is :-

Mg/e

Emg

Em/g

A charge of magnitude 3e and mass 2m is moving in an Electric Field E. The acceleration imparted to the charge is:-

(a) 2Ee/3m

(b) 3Ee/2m

(d) 3m/2Ee

An electric dipole coincides on Z axis and its mid point is on origin of the coordinate system. The electric field at an axial point at a distance z from origin is Ez and electric field at an equatorial point at a distance y from origin is Ey. Here z = y>> a, so the magnitude of Ez/Ey is equal to :-

A charged particle of mass m and charge q initially at rest is released in Electric field of magnitude E. Its kinetic energy after time t will be:-

(a) 2E2t2/mq

(b) E2q2t2/2m

(d) Eqm/2t

Fig. Shows electric field lines due to point charges q1 and q2 placed at points A & B respectively. Write the nature of charge on them. 3333

-,-

-,+

+,-

+,+

An electric dipole of dipole moment p is placed in a uniform electric field E. The maximum torque experienced by the dipole is

2pE

PE/2

4pE

Electric field lines contract lengthwise, it shows

(a) Repulsion between same charges.

(b) Attraction between opposite charges.

(d) Electric field lines don not move on straight path.

Out of the following is not a property of field lines

(a) Field lines are continuous curves without any breaks.

(b) Two field lines cannot cross each other.

(d) They from closed loops.

ELECTRIC CHARGES & FIELDS

Master the Basics of Electric Charges & Fields

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