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If three bulbs 60W, 100W and 200W are connected in parallel, then
- a)200 W bulb will glow more
- b)60 W bulb will glow more
- c)100 W bulb will glow more
- d)All the bulbs will glow equally
Correct answer is option 'A'. Can you explain this answer?
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If three bulbs 60W, 100W and 200W are connected in parallel, thena) ...
Bulb of higher voltage will glow more
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If three bulbs 60W, 100W and 200W are connected in parallel, thena) ...
Explanation:
When three bulbs of different wattages are connected in parallel, then the voltage across each bulb will be the same. The current through each bulb will depend on the resistance of the bulb.
- Voltage across each bulb = Voltage across the parallel combination of bulbs
- Current through each bulb = (Voltage across the bulb) / (Resistance of the bulb)
Since the resistance of a bulb is inversely proportional to its wattage, the bulb with the least wattage will have the highest resistance and hence the least current flowing through it. Similarly, the bulb with the highest wattage will have the least resistance and hence the highest current flowing through it.
Therefore, the 200W bulb will glow more than the other two bulbs when they are connected in parallel.
Answer: Option A.
HTML:
When three bulbs of different wattages are connected in parallel, then the voltage across each bulb will be the same. The current through each bulb will depend on the resistance of the bulb.
- Voltage across each bulb = Voltage across the parallel combination of bulbs
- Current through each bulb = (Voltage across the bulb) / (Resistance of the bulb)
Since the resistance of a bulb is inversely proportional to its wattage, the bulb with the least wattage will have the highest resistance and hence the least current flowing through it. Similarly, the bulb with the highest wattage will have the least resistance and hence the highest current flowing through it.
Therefore, the 200W bulb will glow more than the other two bulbs when they are connected in parallel.
Answer: Option A.
HTML:
Explanation:
- When three bulbs of different wattages are connected in parallel, then the voltage across each bulb will be the same.
- The current through each bulb will depend on the resistance of the bulb.
- Voltage across each bulb = Voltage across the parallel combination of bulbs
- Current through each bulb = (Voltage across the bulb) / (Resistance of the bulb)
- Since the resistance of a bulb is inversely proportional to its wattage, the bulb with the least wattage will have the highest resistance and hence the least current flowing through it.
- Similarly, the bulb with the highest wattage will have the least resistance and hence the highest current flowing through it.
- Therefore, the 200W bulb will glow more than the other two bulbs when they are connected in parallel.
Answer: Option A.
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If three bulbs 60W, 100W and 200W are connected in parallel, thena) 200 W bulb will glow more b) 60 W bulb will glow more c) 100 W bulb will glow more d) All the bulbs will glow equally Correct answer is option 'A'. Can you explain this answer?
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