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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Three similar light bulbs are connected to a constant voltage dc supply as shown in figure. Each bulb operates at normal brightnesand the ammeter (of negligible resistance ) registers a steady current . The filament of one of the bulbs breaks. what happens to the ammeter reading and to the brightness of the remaining bulbs ?

Three similar light bulbs are connected to a constant voltage dc supply as shown in figure. Each bulb operates at normal brightnesand the ammeter (of negligible resistance ) registers a steady current . The filament of one of the bulbs breaks. what happens to the ammeter reading and to the brightness of the remaining bulbs ?

The operating temperature of the filament of lamp is 2000∘C. The temperature coefficient of the material of the filament is 0.005∘C−1. If the atmospheric temperature is 0∘C then the current in the 100 W−200 V lamp when it is switched on is nearest to