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When two bulbs of power 60 watt and 40 watt are connected in series then the power of their combination will be?
When two bulbs of power 60 watt and 40 watt are connected in series then the resulting power their combination will be 24 watt. Explanation: The two bulbs such that the power rating of the bulbs are 60 watt and 40 watt respectively and the two bulbs are connected in series. There, Power combination is 24 watt.
Which bulb has greater resistance 40w or 60W bulb when connected across the same supply?
Resistance and power are inversely proportional to each other. So, lamp powered 40 W has more resistance than a 60 W lamp.
Which bulb is brighter 60W or 100W?
Answer: The bulb rated at 100 W will be brighter. When both bulbs are connected to the rated voltage, they will dissipate the rated power. The brightness of a bulb depends on the power it dissipates, so the 100 W bulb will be brighter than the 60 W bulb.
Can I replace a 40W bulb with a 60W?
As long as you don’t go over the manufacturer’s recommended wattage, you’ll be safe. If your fixture doesn’t have a wattage recommendation, the rule of thumb is to choose bulbs with 60-watts or lower.
Why does a 40 watt bulb glow brighter than a 60W bulb?
And resistance of 40w is higher than 60w means power dissipation is higher in 40w. Hence 40w bulb will glow brighter. For parallel connection voltage is same then power dissipation is higher in 60w means 60w bulb will glow brighter.
What happens when two 60 watt bulbs are connected in series?
We can see that 40w bulb have a high resistance and a 60w bulb. Thus 40w bulb will have a high power dissipation tha a 60w bulb. Hence 40w bulb will glow brighter. Originally Answered: Two bulbs of 60 watt and 40 watt are connected in series with a single source.
What is the resistance of a 60 watt light bulb?
A 60 W lightbulb has a resistance of 240 Ω. You can get this value by solving the for R in the equation P = V 2 / R, where P is the nominal power of 60 Watts, and V is the nominal voltage of 120 Volts. And, using the same approach, you can find the resistance for the 100 Watt light bulb, which is 144 Ω.
Which bulb is brighter 75W or 150W?
A 75 watt bulb and a 150 watt bulb are connected in parallel and the combination is connected to a 120 V line. The bulb that will glow more brightly is the A. 75 watt bulb. B. 150 watt bulb. C. both will glow with the same brightness. B. 150 watt bulb.