# Brightness of bulb

Two identical light bulbs $$X$$ and $$Y$$, which are rated at $$60 \text{ W}$$ ; $$240 \text{ V,}$$ are connected in series to a $$240 \text{ V}$$ source, as shown in the above diagram. If point A in the circuit is now connected to point B by a piece of copper wire with very low resistance, how will the brightness of each bulb change?

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