A 6-V battery powers a circuit with parallel branches on a board. Several wires and light bulbs plug into the board to make various series and parallel circuits. The brightness of the bulbs changes ...

Save guides, add subjects and pick up where you left off with your BBC account. Circuit 3: Ammeter on each branch, voltmeter across each bulb Circuit 4: Ammeter on each branch, voltmeter across ...

If you wanted, you can make a similar circuit with 10 or 20 bulbs. Just connect them all in a line so that the same current goes through each one. This is a series connection.