Question

A circuit contains three resistors rated at 100Ω,200Ω,and 300Ω that are connected in parallel. What's the total resistance of the circuit?

Answer 1

Explanation:

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Answer 2

Explanation:

The connection in the circuit is a parallel connection. The total resistance in parallel circuit can be determined by the formula

1/Rt = 1/R1 + 1/R2 + 1/R3 + 1/R4 ..........

depending on the number of resistors in the circuit and Rt represents total resistance. In the given circuit, there are three resistors and they are rated as 100Ω,200Ω,and 300Ω. Applying the formula

1/Rt = 1/100 + 1/200+1/300

1/Rt = (6+3+2)/600= 11/600

1/Rt = 11/600 =

Rt = 600/11

Rt = 54.54Ω.