For the parallel circuit below:
Why is the current across the ammeter unchanged when the resistance of the variable resistor is increased?
I've always learnt that current varies in parallel and voltage is constant across each 'branch'. So when the variable resistor's resistance is increased, wouldn't the:
(this I know right) Voltmeter reading decrease since it has less proportion of resistance in its branch.
Ammeter reading increase since current would rather flow to that branch which has less resistance?
However the answer is actually that the ammeter reading is unchanged.