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1) A heater joined in parallel with a 60W buld is connected to the mains . If the bulb is replaced by a 100W bulb will the rate of the heat produced by the heater remain same, increase or decrease.
When the appliances are connected in parallel,they operate independent of each other.Therefore,by replacing 60 W bulb by 100 W bulb,the heat given by the heater will be unchanged.


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