how many 176 ohms resistors are to be connected in parallel to carry 5A on a 220V line ?
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Answered by
11
since all resistance are equal,hence
equivalent resistance = 220/5 = 44ohm
let n resistors connected in parallel
then ,
44 = 176/n
n = 4
equivalent resistance = 220/5 = 44ohm
let n resistors connected in parallel
then ,
44 = 176/n
n = 4
miky:
please say me the formula taken for calculating n resistors
Answered by
10
When N resistors of 176 ohms are connected in parallel, net resistance is
176 / N ohms
V = I R = > 220 = 5 * 176 / N
N = 4
176 / N ohms
V = I R = > 220 = 5 * 176 / N
N = 4
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