In figure, calculate (a) the total resistance of the circuit, (b) the value of R, and (c) the current flowing in R

Question

In figure, calculate the total resistance of the circuit, the value of R, and the current flowing in R. Current Electricity, Concise Physics Solutions ICSE Class 10.

KnowledgeBoat · Accepted Answer

(a) Given, V = 4 V I = 0.4 A From Ohm's law V = IR 4 = 0.4 x R R = 4 / 0.4 = 10 Ω Hence, total resistance of the circuit = 10 Ω (b) As total resistance of the circuit is equal to 10 Ω and the two resistors R and 20 Ω are connected in parallel, hence we get, Hence, the value of R = 20 Ω (c) current flowing in R = ? V = 4 V R = 20 Ω I = ? From Ohm's law V = IR 4 = I x 20 I = 4 / 20 = 1 / 5 = 0.2 A Hence, the current flowing in R = 0.2 A

Physics

In figure, calculate —
(a) the total resistance of the circuit,
(b) the value of R, and
(c) the current flowing in R

Current Electricity

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