Electric Current and Simple Circuits Test

If the current and resistance in a circuit are known, the voltage can be determined by_____________________.

• adding current and resistance.

• dividing current by resistance.

• multiplying current and resistance.

• subtracting resistance from current.

Which is a measure of the amount of energy used to move a coulomb of electrons?

• Electric Circuit

• Voltage

• Electric Resistance

• Current

Which statement describes the relationship between electric resistance and the flow of electric current in materials?

• Good insulators have no resistance.

• Good insulators have low resistance.

• Good conductors have low resistance.

• Good conductors have high resistance.

The ohm is a unit used to measure ____________.

• Voltage

• Current

• Resistance

• Power

Which equation correctly states Ohm's law?

• v=cr

• v=c+r

• v=c/r

• v=c*r

Which action would increase the resistance of a copper wire?

• Making it shorter

• Making it thicker

• Making it thinner

• Increasing the temperature

The unit used to measure electric resistance is the_______?

• Volt

• Watt

• Ohm

• Ampere

Which is a complete path through which a current travels?

• Electric Circuit

• Voltage

• Electric Resistance

• Current Flow

Which material has a low electric resistance?

• Glass

• Plastic

• Copper

• Rubber

Which is a measure of how difficult it is for an electric current to flow through material?

• Electric Resistance

• Electric Conductance

• Electric Capacitance

• Electric Inductance