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How many \(176\ Ω\) resistors (in parallel) are required to carry \(5\ A\) on a \(220\ V\) line?
Number of required resistors \(=\ x\)
The equivalent resistance of the parallel combination of resistor \(R\) is given by
From the Ohm's law, , the formula for resistance can be found.
On substituting the known values, we get the number of required resistors as .