Example 1

We can demonstrate the relationship between voltage*, current* and resistance* in the circuit below which connects a cell*, an ammeter* and a resistor*.

The cell provides a voltage of 1 volt.
The resistor has a value of 1 ohm.
The ammeter reads a current of 1 amp.

If we replace the 1 ohm resistor with a 2 ohm resistor, what will the ammeter read?

Electricity Menu

Go to next page