Electric Field

They are only relevant to theoretical physics.

They help in designing and operating electrical devices and communication systems.

They are mainly used in chemistry experiments.

They have no practical applications.

Similar charges attract each other, opposite charges repel each other.

Similar charges repel each other, opposite charges attract each other.

All charges attract each other.

All charges repel each other.

The mass of the charges

The magnitude of each charge

The distance between the charges

The permittivity constant

The force doubles.

The force is halved.

The force becomes one-fourth.

The force remains the same.

A region where magnetic forces act

A region where gravitational forces act

A region where forces act on charged objects

A region with no forces present

E = F/q0

E = k|q|/r^2

E = m*a

E = V/I

10 N/C

40 N/C

5.05 N/C

2.5 N/C

True

False

Field lines always extend from positive to negative charges.

Field lines can cross each other if the fields are strong.

The density of field lines indicates the strength of the electric field.

Field lines can start and end on the same charge.