why it is not desirable that an electrical bulb used for light but it also gives heat
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. But overall around the world a heat emitting bulb is not desirable because according to the joules law of heating the filament in the bulb gets heated and glows but actually it consumes a lot of power and most of it is wasted as heat , only some amount of energy is converted into light . So ur electricity is actually getting more wasted moreover the life span of these bulbs is very less .they also do not emit. Bright white light as lcds so they arenot desirable
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