What are the values of the currents flowing in each of the following diode circuits X and Y respectively? (Assume that the diodes are ideal) (a) 1 A, 2 A (b) 2 A, 1 A (c) 4 A, 2 A (d) 2 A, 4 A

Answer: (c). Circuit X: both diodes are forward biased, so the two 4 Ω branches are in parallel: R = 2 Ω, IX = 8/2 = 4 A. Circuit Y: D₂ is reversed, so only the D₁ branch conducts: R = 4 Ω, IY = 8/4 = 2 A. So the answer is (c) 4 A, 2 A.

What are the values of the currents flowing in each of the following… | MHT CET 2021 (23 Sep, Shift 1)

Q72MHT CET 2021 · 23 SEP · SHIFT 1Medium

P-N Junction Diode

What are the values of the currents flowing in each of the following diode circuits $\text{X}$ and $\text{Y}$ respectively? (Assume that the diodes are ideal)

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Answer: (c)

Circuit X: both diodes are forward biased, so the two $4\ \Omega$ branches are in parallel: $R = 2\ \Omega$ , $I_X = \dfrac{8}{2} = 4$ A.
Circuit Y: $D_2$ is reversed, so only the $D_1$ branch conducts: $R = 4\ \Omega$ , $I_Y = \dfrac{8}{4} = 2$ A.
So the answer is (c) $4$ A, $2$ A.

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