The electric bulbs have tungsten filaments of same length. If one of them gives $60 \,watt$ and other $100\, watt$, then
  • A$100\, watt$ bulb has thicker filament
  • B$60\, watt$ bulb has thicker filament
  • C
    Both filaments are of same thickness
  • D
    It is possible to get different wattage unless the lengths are different
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