(1)
Two tungsten bulbs of power 50 W and 60 W work on 220 V
potential difference. If they are connected in parallel, how much
current will flow in the main conductor ?
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c.is the CCC SBI or or thoughts of did an
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Answer:
The answer is 0.49 A
Explanation:
Power is the product of voltage (V) and current (I).
P=V x I Watts
Therefore, Current = Power/Voltage
In parallel circuit, the voltage across each bulb is the same
For the 1st bulb
Power = 50 W and Voltage =220 V
∴ Current = 50/220
Current = 0.22 A
For 2nd bulb,
Power = 60 W and Voltage =220 V
∴ Current = 60/220
Current = 0.27 A
Total current flowing = Current in 1st bulb + Current in 2nd bulb.
= 0.22 + 0.27
= 0.49 A.
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