Consider the circuit in the following diagram, where the resistances are R1 = 0.15R, R2 = 2R, R3 = 0.55R, and R4 = 3R, where R = 78 Ω. The circuit is connected to a V = 4.7 V source. (i) Input an expression for the equivalent resistance of the circuit in terms of R1, R2, R3, and R4. (ii) Input an expression using the Req and V for power expended by the circuit. (iii) What is the power P, in watts? Image attached below
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Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
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Consider the circuit in the following diagram, where the resistances are R1 = 0.15R, R2 = 2R, R3 = 0.55R, and R4 = 3R, where R = 78 Ω. The circuit is connected to a V = 4.7 V source.
(i) Input an expression for the equivalent resistance of the circuit in terms of R1, R2, R3, and R4.
(ii) Input an expression using the Req and V for power expended by the circuit.
(iii) What is the power P, in watts?
Image attached below
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