Understanding Electric Current

What is the scientific definition of electric current?

• The rate of flow of electric charge in conductors

• The amount of electric charge in a conductor

• The speed of electrons in a circuit

• The voltage across a conductor

Which formula represents electric current?

• I = Q/T

• I = V/R

• I = R/V

• I = P/V

In which direction does conventional current flow?

• From positive to negative

• From negative to positive

• In a circular motion

• In the same direction as electrons

How do electrons move in relation to conventional current?

• They do not move

• In a circular motion

• In the opposite direction

• In the same direction

How does current flow in a circuit outside the cell?

• From negative to positive

• From positive to negative

• In a circular motion

• It does not flow

Inside a cell, how does current flow?

• In a circular motion

• From negative to positive

• It does not flow

• From positive to negative

What is the SI unit of electric current?

• Volt

• Coulomb

• Ampere

• Ohm

How is one ampere defined?

• One joule per second

• One coulomb per second

• One volt per second

• One ohm per second

If two coulombs of charge pass through a point in one second, what is the current?

• One ampere

• Two amperes

• Three amperes

• Four amperes

What happens to the current if the charge flow increases?

• The current decreases

• The current remains the same

• The current increases

• The current becomes zero