several electric bulb design to be used in a 220 volt electri supply line ae rated at 10 watt. how much lamp are onnected in parallel with each other across two wire of 220 volt line , if the maximum allowance current is 5 amphere?
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Several electric bulbs designed to be used on a 220 V electric supply line, are rated 10 W. How many lamps can be connected in parallel with each other across the two wires of 220 V line if the maximum allowable current is 5 A? ∴ Number of electric bulbs connected in parallel are 110.
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Answer:
Resistance R1 of the bulb is given by the expression, Supply voltage, v = 220 v maximum allowable current, /= 5 A Rating of an electric bulb p = 10 watts
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