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Which of the following is a conductor?

plastic

wood

Which of the following has the lowest resistance?

copper

plastic

wood

What does resistance do?

A

slows down the flow of electrons

B

makes current higher

As resistance makes it difficult for current to flow ____________.

the greater the resistance in a circuit

the lesser the resistance in a circuit

The greater the resistance in a circuit, the __________ the current flow

smaller

bigger

low

high

easy

Using an equation, what does Ohm's Law say?

What do I call the devices shown?

What happens to the current in a series circuit if you increase the number of cells?

A

current increases

B

current decreases

What happens to the voltage in a series circuit if you increase the number of cells?

A

Voltage increases across each component.

B

Voltage decreases in the battery.

What happens to the supply voltage in a parallel circuit if you increase the number of cells?

A

supply voltage increases

B

supply voltage decreases

What happens to the voltage across each branch in a parallel circuit if you increase the number of cells?

A

voltage increases

B

voltage decreases

What happens to the current through the cell in a parallel circuit if you increase the number of cells?

A

current through the cell increases

B

current through the cell decreases

What happens to the current through each branch in a parallel circuit if you increase the number of cells?

A

current through each branch increases

B

current through each branch decreases

voltage

parallel

series

current