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Two bulbs when connected in parallel to a source take 100 W each. The total power consumed when they are connected in series with the same source is
- a)25 W
- b)50 W
- c)100 W
- d)200 W
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Two bulbs when connected in parallel to a source take 100 W each. The ...
Series Circuits:
I1 = I2 = I
Rt = R1 + R2
V= Vt = V1 + V2
I1 = I2 = I
Rt = R1 + R2
V= Vt = V1 + V2
Parallel circuits:
V1 = V2 = V
Rt = (1/R1) + (1/R2)
It = I1 + I2
Power = VI = I2R = V2/R
Two bulbs when connected in parallel to a source take 100 W each.
When two bulbs are connected in series:
Rt = R1 + R2 = 2R
V1 = V2 = V
Rt = (1/R1) + (1/R2)
It = I1 + I2
Power = VI = I2R = V2/R
Two bulbs when connected in parallel to a source take 100 W each.
When two bulbs are connected in series:
Rt = R1 + R2 = 2R
Most Upvoted Answer
Two bulbs when connected in parallel to a source take 100 W each. The ...
Series Circuits:
I1 = I2 = I
Rt = R1 + R2
V= Vt = V1 + V2
I1 = I2 = I
Rt = R1 + R2
V= Vt = V1 + V2
Parallel circuits:
V1 = V2 = V
Rt = (1/R1) + (1/R2)
It = I1 + I2
Power = VI = I2R = V2/R
Two bulbs when connected in parallel to a source take 100 W each.
When two bulbs are connected in series:
Rt = R1 + R2 = 2R
V1 = V2 = V
Rt = (1/R1) + (1/R2)
It = I1 + I2
Power = VI = I2R = V2/R
Two bulbs when connected in parallel to a source take 100 W each.
When two bulbs are connected in series:
Rt = R1 + R2 = 2R
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Community Answer
Two bulbs when connected in parallel to a source take 100 W each. The ...
When two bulbs are connected in parallel to a source, they each consume 100 W of power. This means that each bulb receives the full voltage of the source and operates independently.
When two bulbs are connected in series with the same source, the total power consumed is different. In a series circuit, the current passing through both bulbs is the same. This means that the total voltage of the source is divided between the two bulbs.
Let's calculate the power consumed when the bulbs are connected in series:
1. The power consumed by each bulb can be calculated using the formula P = V * I, where P is power, V is voltage, and I is current.
2. Since the current passing through both bulbs is the same, we can calculate the total power consumed by the series combination by adding the power consumed by each bulb.
3. Let's assume that the voltage of the source is V volts and the current passing through the bulbs is I amperes.
4. In a series circuit, the voltage across each bulb is divided in proportion to their resistances. Therefore, the voltage across each bulb can be calculated as V/2.
5. Now, using the formula P = V * I, we can calculate the power consumed by each bulb as (V/2) * I = (V * I) / 2.
6. Since both bulbs consume the same power, the total power consumed by the series combination is (V * I) / 2 + (V * I) / 2 = V * I.
7. Therefore, the total power consumed when the bulbs are connected in series is V * I.
From the given information, we know that each bulb consumes 100 W of power when connected in parallel. Therefore, the total power consumed when the bulbs are connected in series is 100 W.
Hence, the correct answer is option B) 50 W.
When two bulbs are connected in series with the same source, the total power consumed is different. In a series circuit, the current passing through both bulbs is the same. This means that the total voltage of the source is divided between the two bulbs.
Let's calculate the power consumed when the bulbs are connected in series:
1. The power consumed by each bulb can be calculated using the formula P = V * I, where P is power, V is voltage, and I is current.
2. Since the current passing through both bulbs is the same, we can calculate the total power consumed by the series combination by adding the power consumed by each bulb.
3. Let's assume that the voltage of the source is V volts and the current passing through the bulbs is I amperes.
4. In a series circuit, the voltage across each bulb is divided in proportion to their resistances. Therefore, the voltage across each bulb can be calculated as V/2.
5. Now, using the formula P = V * I, we can calculate the power consumed by each bulb as (V/2) * I = (V * I) / 2.
6. Since both bulbs consume the same power, the total power consumed by the series combination is (V * I) / 2 + (V * I) / 2 = V * I.
7. Therefore, the total power consumed when the bulbs are connected in series is V * I.
From the given information, we know that each bulb consumes 100 W of power when connected in parallel. Therefore, the total power consumed when the bulbs are connected in series is 100 W.
Hence, the correct answer is option B) 50 W.
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Two bulbs when connected in parallel to a source take 100 W each. The total power consumed when they are connected in series with the same source isa)25 Wb)50 Wc)100 Wd)200 WCorrect answer is option 'B'. Can you explain this answer?
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