Consider the three resistors R1 = 12 Ω, R2 = 39 Ω, and R3 = 78 Ω in the configuration shown in the figure. A potential difference ΔV = 1.5 V is applied between A and B.A. Calculate the numerical value of I2 in A.B. Calculate the numerical value of I3 through R3. This diagram depicts an electrical circuit consisting of three resistors. - **Resistor $ R_1 $** is connected in series with a parallel combination of two other resistors.- **Resistors $ R_2 $ and $ R_3 $** are arranged in parallel with each other.- The circuit starts at point **A** and ends at point **B**.In this configuration, the total resistance can be calculated using formulas for series and parallel resistors:1. Calculate the equivalent resistance, $ R_{\text{parallel}} $, for the parallel resistors $ R_2 $ and $ R_3 $: \[ \frac{1}{R_{\text{parallel}}} = \frac{1}{R_2} + \frac{1}{R_3} \]2. Add the resistance $ R_1 $ in series with the equivalent resistance $ R_{\text{parallel}} $: \[ R_{\text{total}} = R_1 + R_{\text{parallel}} \]This type of circuit is common in various electrical applications, where managing current flow and voltage distribution is essential.

Equivalent resistance of R2 and R3 (parallel) 1/R23 = 1/R2 + 1/R3 1/R23 = 1/39 + 1/78 1/R23 = 39+78…

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