A car headlight bulb working on a 12 V car battery draws a current of 0.5 A. The resistance of the light bulb is: (a) 0.5Ω (b) 6Ω (c) 12Ω (d) 24Ω
So, the correct option is (d).
A car bulb connected to a 12 volt battery draws 2 A current when glowing. What is the resistance of the filament of the bulb? Will the resistance be more, same or less when the blb is not glowing?
A cell of potential difference 12 V is connected to a bulb. The resistance of filament of bulb when it glows, is 24 Ω. Find the current drawn from the cell.