Physics
A current 0.2 A flows in a wire of resistance 15Ω. Find the potential difference across the ends of the wire.
Related Questions
A cell of potential difference 12V is connected to a bulb. The resistance of filament of bulb when it glows, is 24Ω. Find the current drawn from the cell.
A bulb draws current 1.5 A at 6.0 V. Find the resistance of filament of bulb while glowing.
An efficient use of energy results in :
- increase in the emission of greenhouse gases
- a reduction in the cost of energy
- a reduction in the emission of green house gases
- both (b) and (c)
The most non-polluting and efficient lighting device is —
- CFL
- Fluorescent light
- LED
- Electric bulb