A resistor has a resistance of 176 ohms. How many of these resistors should be connected in parallel so that their combination draws a current of 5 amperes from a 220 volt supply line?
Suppose x resistors should be connected in parallel to draw a current of 5A
for parallel combination
1/R = 1/R1 +1/R2+ 1/R3........x
According to the question
Requi=176/x
x=176/44=4 resistor