Calculate the problem below:
Two lamps, one rated \(128\ W\) at \(220\ V\), and the other \(55\ W\) at \(220\ V\), are connected in parallel to electric mains supply. What current is drawn from the line if the supply voltage is \(220\ V\)?
The formula for power is
From the above formula, the value of current can be easily calculated.
Case 1:
Power, \(P\) \(=\) \(128\ W\)
Voltage, \(V\) \(=\) \(220\ V\)
Current \(=\) \(A\)
Case 2:
Power, \(P\) \(=\) \(55\ W\)
Voltage, \(V\) \(=\) \(220\ V\)
Current \(=\) \(A\)
The current drawn from the line is \(A\)
[Note: Enter the answer upto two decimal places.]