Two bulbs A&B is rated as(100w-220v)and (1000w-220v)are connected in series to 220v.which bulb will more illumiation
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When resistances are connected in series, same current passes through each of them. So power (P) & potential difference across aresistance are,
P is proportional to R(resistance) [ as P=(i^2)*R]
V is proportional to R(resistance) [ as P=i*R]
ie in series connection, power consumed & P.D. will be more in higher resistance.
Higher wattage means less resistance, when a number of bulbs are connected in series, a bulb with lower resistance will consume less power & the P.D. across it will also be less. Therefore in series connection, a bulb with higher wattage will glow less brightly.
Hence the 40W bulb will glow brighter.
P is proportional to R(resistance) [ as P=(i^2)*R]
V is proportional to R(resistance) [ as P=i*R]
ie in series connection, power consumed & P.D. will be more in higher resistance.
Higher wattage means less resistance, when a number of bulbs are connected in series, a bulb with lower resistance will consume less power & the P.D. across it will also be less. Therefore in series connection, a bulb with higher wattage will glow less brightly.
Hence the 40W bulb will glow brighter.
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