A student is trying to find the resistance of a lamp. He has connected the circuit wrongly, as shown. Which alteration would enable him to make the measurements needed to calculate the resistance of the lamp?
- ADisconnect the ammeter and move it to the left of the lamp.
- BSwap the positions of the ammeter and the voltmeter in the circuit.
- CDisconnect the ammeter and connect it in parallel with the lamp.
- DDisconnect the voltmeter and connect it in parallel with the lamp.