Which of the following factors affects the resistance of an object?

Which of the following wires has the lowest resistance?

For a cell to produce a current, the electrodes of the cell must

You can make a cell by using a lemon, a strip of copper, and a strip of silver. What part of the cell is the electrolyte?

Which of these would lower the electrical resistance of a wire?

What movement causes an electric current in a wire?

What makes electrons move when you turn on the lamp?

One of these IS NOT a factor that affects resistance

Poor conductors such as iron have higher resistance and are useful in heating appliances. Which of these will NOT be made using a poor conductor?

Photocells contain which of these elements?