Fig. 9.1 and Fig. 9.2 each illustrate an electrical circuit. In both circuits, two lamps are linked to an electrical supply.
(a)[2]
State the name used for each electrical circuit. Write the name below each circuit.
(b)[2]
State two disadvantages of the circuit in Fig. 9.2.
(c)[2]
Redraw the circuit in Fig. 9.1 with switches that will allow lamps X and Y to be switched on and off independently from one another.
(d)[3]
Complete the table to show whether the lamps are on or off. The first one has already been completed for you.
Worked solution & mark scheme
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