Question

ider the circuit shown in the figure below. (Let R = 40.0 .) 25.0 V 10.0 10.0 b a 5.00 R 5.00 (a) Find the current in the 40.0-0 resistor. A (b) Find the potential difference between points a and b. V

Answer 1

Concept - Find the equivalent resistance of the circuit and use Ohm’s law to find the current through the battery as shown below. Find the voltage difference between points a and point b and hence find the current through the required resistance.

circuit be redrasn as a) The can 2s v 10 2 Sn ea of S2 and R is RA RtS.2 452 13 1 2 Ren 45e Cunrent givenby bat 2sV 1.q1 A 5.92 V 2SV V Iro is -Va 45 in 40 2 Cunent So 0 132 A if potenhial difference V-Va than a-Vb 5 92 V means remove minus sign before thu answer in part

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