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Revise smart, understand Better

Dynamics: Newton’s Laws of Motion
ELECTRICITY: Current
ELECTRICITY: Current
ELECTRICITY: Resistance
Elasticity
Electric fields
Electromagnetism
Electromagnetism
Energy: Application And Uses
Experimental physics
Forces
Gravitational fields
Heat
Kinematics in Two Dimensions: Vectors, projectiles
Kinematics in one dimension
Linear Momentum
MOTION
MOTION
MOTION
MOTION
MOTION
MOTION: Circular
MOTION: Collision
MOTION: Inclined plane
MOTION: Simple harmonic motion (SHM)
Magnetism
Optics
PLASTICS
PRESSURE
Radioactivity
TEMPERATURE
The Laws of Thermodynamics
Units System
Units System
Units, dimensions and homogeneity
WAVES: Electromagnetic
WAVES: Electromagnetic
WAVES: Sound

5/30 MCQs for:

Electric fields

Can electric field lines intersect in free space?

Yes, but only at the centroid of an equilateral triangle with like charges at each corner.

No.

Yes, but only at the midpoint between two equal like charges.

Yes, but only at the midpoint between a positive and a negative charge.

A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test charge?

0.045 N.

0.45 N.

45 N.

4.5 N.

An atomic nucleus has a charge of +40e. What is the magnitude of the electric field at a distance of 1.0 m from the nucleus?

5.6 x 10^-8 N/C.

6.2 x 10^-8 N/C.

6.0 x 10^-8 N/C.

5.8 x 10^-8 N/C.

Three identical charges of 3.0 µC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

1.8 N.

2.2 N.

1.6 N.

2.0 N.

Which of the following is not a vector?

Electric line of force.

Electric field.

Electric charge.

Electric force.