Question

If the voltage is same for all the resistors find R2,R3,R4
P.s. the circuit consists of an unknown voltage source connected across the resistors
The resistors R3 & R2 are in series which is in parallel with R1=24 ,and series with R4
[(R1||(R2+R3))+R4]

Answer 1

What is the formula for the equivalent resistance RT of the three resistors r1 r2 & r3 are connected in parallel circuit?

Here the supply potential is VAB between the points A and B. Since the resistors R1, R2 and R3 are connected in parallel combination the potential difference across each resistor is same as the supply. Hence VAB = VR1 = VR2 = VR3. VR1 is the potential across the resistor R1.

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