Electricity Quiz

What is a current in the context of electricity?

• A storage of charge carriers

• A flow of charge carriers

• A type of electrical component

• A unit of electrical resistance

What are the charges that flow to create current in an electrolyte?

• Neutrons

• Protons

• Electrons

• Ions

What are the charges that flow to create current in a metal wire?

• Positive metal ions

• Neutrons

• Ions

• Free conduction electrons

What is the value of the elementary charge, e?

• 1.6x10^-18 C

• 1.6x10^-19 C

• 1.6x10^-20 C

• 1.6x10^-17 C

The charge on any ion is an integer multiple of which constant?

• Planck's constant

• Speed of light

• Elementary charge, e

• Avogadro's number

What type of charge do electrons carry?

• Positive

• Negative

• Neutral

• Variable

What are the charge carriers in a metal conductor?

• Protons

• Neutrons

• Free electrons

• Positive metal ions

What causes the electrons to drift towards the positive terminal in a metal conductor?

• Magnetic field

• Electric field

• Thermal energy

• Mechanical force

What is the result of the motion of electrons towards the positive terminal in a metal conductor?

• Magnetic field

• Electric potential

• Electric current

• Thermal energy

What is electric current?

• The resistance encountered by charge moving in a wire

• The amount of charge that moves through the cross-sectional area of a wire per unit time

• The potential difference across the ends of a wire

• The power dissipated by a wire