mera qustion ye hai ki agar energy ek form se dusre form ke energy me convert hoti hai to . jo bulb ki light rahati he vo bhi ek energy hi rahati hai to bulb ki light switch off karne par kis form ke enregy me change ho jati hai.
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Answers
Answer:
electromagnetic energy from a power plant is converted to EM energy in a different form (light) and heat.
More accurate answer (but still somewhat simplified from an energy-conversion standpoint):
When you flip the switch, you put a small additional load on your power-grid's generator, which then uses a tiny bit more of its energy source - chemically stored energy from fossil fuels, strong nuclear force binding (electromagnetic) energy from a nuclear plant, electromagnetic energy in the form of solar photons from solar panels, etc. This source energy is, in the former 2 cases, converted first into heat, then into mechanical (rotational) energy and finally into electromagnetic energy in the generator. The EM energy then moves to your residence via the electrical grid and flows through the bulb. The electron flow through the bulb filament is virtually 100% converted to heat in an incandescent bulb, while some is converted directly to photons but again mostly heat in fluorescent or LED bulbs.
The heated filament gets white-hot and emits photons (electromagnetic) energy of various wavelengths - the hotter the filament, the bluer/whiter the photon frequency (color). A small number of these photons reach your eye where they make chemical changes in your retina so you see things that have reflected the bulb's visual-frequency photons. But most of the photons emitted by the bulb are infrared, which you can't see but which are absorbed and converted to heat in the environment (walls, ceiling, etc.)
Explanation:
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