
For, X number of resistors of resistance 176 Ω,
Here Supply voltage, V = 220 V
Current, I = 5 A
Equivalent resistance of the combination = R, given as
1/R = X x (1/176)
Or, R = 176/X
From Ohms Law
V/I = 176/X
Or, X = 176 x I/V = 176 x 5/220 = 4
So Four resistor of 176 Ω are required to draw the given amount of current.