our sister has a resistance of 176 ohms how many of these religion should be corrected in parallel so that their combination draws a current of 5 ampere from a 220 volt supply line
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Answer:
Here you go!
Rp (Net resistance) = V/I = 220/5 = 44 ohms
Thus, we need a total resistance of 44 ohms.
In parallel combination:
1/Rp = 1/R1 + 1/R2 + .........
Thus,
1/Rp = 1/176 x y
1/44 = 1/176 x y
y = 176/44
y = 4
Therefore, we will need 4 such resistors.
Hope it helps.
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