In the circuit shown below in figure, calculate the value of x if the equivalent resistance between the points A and B is 4 Ω.
Current Electricity
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Question

In the circuit shown below in figure, calculate the value of x if the equivalent resistance between the points A and B is 4 Ω.

KnowledgeBoat · Accepted Answer

In the circuit, there are three parts. In the first part, resistors of 4 Ω and 8 Ω are connected in series. If the equivalent resistance of this part is R'_s then R'_s = 4 + 8 = 12 Ω In the second part, resistors of x Ω and 5 Ω are connected in series. If the equivalent resistance of this part is R''_s then R''_s = (x + 5) Ω In the third part, the two parts of resistance R'_s = 12 Ω and R''_s = (x + 5) Ω are connected in parallel. If the equivalent resistance between points A and B is R_p then But it is given that equivalent resistance between points A and B is 4 Ω R_p = 4 Ω Putting value of R_p in the equation above and solving for x: Hence, the value of x = 1 Ω

Physics

In the circuit shown below in figure, calculate the value of x if the equivalent resistance between the points A and B is 4 Ω.

Current Electricity

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