A teacher is using the circuit diagram shown. The identical lamps X and Y are connected to a low voltage a.c. power supply through high resistance transmission wires. Both lamps are switched on. Lamp X is then switched off. Lamp Y remains switched on. What happens to the voltage and the power supplied to lamp Y?
- Athe voltage supplied to lamp Y decreases; the power supplied to lamp Y decreases
- Bthe voltage supplied to lamp Y decreases; the power supplied to lamp Y stays the same
- Cthe voltage supplied to lamp Y increases; the power supplied to lamp Y increases
- Dthe voltage supplied to lamp Y increases; the power supplied to lamp Y stays the same