Four resistors of resistances 5 ohms each are connected in parallel. Calculate the effective resistance of the combination.
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Step-by-step explanation:
R1 = 5ohm
R2 = 5ohm
R3 = 5ohm
R4 = 5ohm
1/R = 1/R1 + 1/R2 + 1/R3 + 1/R4
= 1/5 + 1/5 + 1/5 + 1/5
= 1/0.8
R. = 0.8
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