Science, asked by finalithayil, 1 year ago

A circuit has a line of 5A.How many lamps of rating 40W;220V can simultaneously run on this line safely?

Answers

Answered by sharinkhan

2

R = 220 x 220 _____________ 40 R = 1210 ohm Main voltage 220 Maximum current 5 A R = r/n N = 27.5

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