Electric Charges and Fields Quiz

What is the unit of electric field?

• V/m

• J

• C

• N/m

What is the principle of superposition related to in the context of electric charges?

• Electric field due to a point charge

• Charging a body

• Conductors and insulators

• Force between multiple charges

What is the direction of the electric field for a positive charge?

• Vertical

• Horizontal

• Radially outward

• Radially inward

What is the formula for the force between two point charges according to Coulomb's law?

• F = kq / r

• F = kq^2 / r

• F = kq / r^2

• F = kq^2 / r^2

Identify the one which is not a property of electric field lines .

• Stronger the field, the closer will be the lines of force

• Two lines of force intersect each other

• An electric line of force starts from a positive charge and ends at a negative charge

• The number of electric lines of force passing normally through unit area is directly proportional to the strength of the electric field

What is the electric field inside a charged conductor?

• Zero

• Depends on the charge

• Infinite

• Variable

What is the relationship between electric field and potential difference?

• Directly proportional

• Inversely proportional

• No relationship

• Depends on the medium

What is the SI unit of charge?

• Volts

• Amperes

• Coulombs

• Ohms

What is the direction of the electric field for a negative charge?

• Vertical

• Horizontal

• Radially outward

• Radially inward

State the theorem used to find the net outward flux through a closed surface, if a charge is enclosed.