(a)[1]
State what component Z is called.
(b)[1]
State the value shown on ammeter Y.
(c)[3]
Calculate the resistance of the nichrome wire.
(d)[2]
State and explain how the current changes.
Physics 0625 · IGCSE · Electric circuits
Electric circuits — practice question
Fig. 10.1 shows a circuit that a student uses to test a nichrome metal wire.