(a(i))[3]
In Fig. 10.1, insert the missing circuit symbols.
(a(ii))[4]
Describe how the student could use the circuit to obtain a dependable value for the resistance of R.
(b)[4]
State and explain the effect this has on the current in the circuit.
Physics 0625 · IGCSE · Electric circuits
Electric circuits — practice question
A student carries out an experiment to find the resistance of a fixed resistor, R. The student has sketched an incomplete circuit diagram, as shown in Fig. 10.1.