A 470Ω resistor, a 220Ω resistor, and a 100Ω resistor are all in parallel. The total resistance is approximately

1. 

A 470  resistor, a 220  resistor, and a 100  resistor are all in parallel. The total resistance is approximately
[A]. 790
[B]. 470
[C]. 60
[D]. 30

Answer: Option C

Explanation:

1/R = (1/470 + 1/220 + 1/100)

R = 59.98 ohm

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