( Figure 1 ) Assume that E = 48.5 V and R = 0.850 ? . Compute the equivalent res

Question

(Figure 1) Assume that E = 48.5V and R = 0.850? .

Compute the equivalent resistance of the network in the figure. The battery has negligible internal resistance.

Find the current in the 0.850? resistor.

Find the current in the 3.00 ? resistor.

Find the current in the 7.00 ? resistor.

Find the current in the 5.00 ? resistor.

Assume that E = 48.5V and R = 0.850?. Compute the equivalent resistance of the network in the figure. The battery has negligible internal resistance. Find the current in the 0.850? resistor. Find the current in the 3.00 ? resistor. Find the current in the 7.00 ? resistor. Find the current in the 5.00 ? resistor.

Explanation / Answer

R1 ||R2 = R1 x R2 / (R1 + R2)

so Rnet = (0.850 + 3) || ( 7 +5)
           = 2.92 ohm
i = V/R = 48.5/2.92 = 16.64 A

current through upper branch = 16.64 x ( 7 +5) / [( 7 +5) +(0.850 + 3) ]
    = 12.60 A   .......through 0.850 and 3 ohm
current through lower branch = 16.64 x (0.850 + 3)   / [( 7 +5) +(0.850 + 3) ]
=4.04 A   ......thorugh 7 and 5 ohm

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