A student assembles the circuit illustrated. Which switches need to be closed for the bell to ring without the lamp lighting?
- A1 and 2 only
- B1 and 3 only
- C1, 3 and 4
- D2, 3 and 4
Physics 0625 · IGCSE · Electric circuits
A student assembles the circuit illustrated. Which switches need to be closed for the bell to ring without the lamp lighting?