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Question
Three heaters each rated 250 W, 100 V are connected in parallel to a 100 V supply. Calculate :
The total current taken from the supply
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Solution
Given ,
Power , P = 250 W
Voltage , V = 100 V
Current through each heater , I = ?
As P = VI
`=> "I" = "P"/"V"`
`= 250/100 = 2.5 "A"`
∴ Current taken for the three heaters = 3 × 2.5 = 7.5 A
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