GCSE Physics

Example 3

The circuit below connects a cell*, an ammeter* and a resistor*.

The cell provides a voltage* of 4 volts.
The resistor has a value of 2 ohms*.
The ammeter reads a current* of 2 amps.

Circuit with battery, resistor and ammeter

If we replace the 2-ohm resistor with an 4-ohm resistor, what will the ammeter read?

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