an expression for the electric field that was produced by an expression for the

Question

an expression for the electric field that was produced by an expression for the electric field that was produced by an expression for the electric field that was produced by an expression for the electric field that was produced by an expression for the electric field that was produced by an expression for the electric field that was produced by Question 3 R, Calculate the equivalent resistance of the resistors shown in the figure. R1 = 50.0 , R2 = 40.0 . R3 = 46.0 , R4 = 40.0 and RS = 45.0 . 26.4 55.9 35.8 221 Click "Submit Answer" below to submit all 3 of your answers. Submit Answer Tries 3/10 Previous Tries Other Views Threaded View Chronological View

Explanation / Answer

In the given circuit

R2,R3 and R4 are in parallel.

so,

1/R234 = 1/R2 + 1/R3 + 1/R4

1/R234 = 1/40 + 1/46 + 1/40

R234 = 13.9 ohms

The above combination is in series with R1.

so, R1234 = R1 + R234 +

= 50 + 13.9

= 63.9 ohms

The above combination is parallel with R5.

so,

1/Rab = 1/R1234 + 1/R5

Rab = R1234*R5/(R1234 + R5)

= 63.9*45/(63.9 + 45)

= 26.4 ohms

so, 1st option is the correct answer.

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