What is the relation of the transistor current? (A) IB=IC+IE (B) IC=IE+IB (C) IE=IC+IB (D) IC=IE

Name: Problem 2935, Chapter 40: JEE Physics
Uploaded: 2021-10-05T04:09:53-08:00
Duration: 1 min 1 s
Channel: Narayan Hari
Description: What is the relation of the transistor current? (A) IB=IC+IE (B) IC=IE+IB (C) IE=IC+IB (D) IC=IE+IB

step 1 So in this problem, as we know that, as we know that emitter current, emitter current is equal t

Question

What is the relation of the transistor current? (A) $\mathrm{I}_{\mathrm{B}}=\mathrm{I}_{\mathrm{C}}+\mathrm{I}_{\mathrm{E}}$ (B) $\mathrm{I}_{\mathrm{C}}=\mathrm{I}_{\mathrm{E}}+\mathrm{I}_{\mathrm{B}}$ (C) $\mathrm{I}_{\mathrm{E}}=\mathrm{I}_{\mathrm{C}}+\mathrm{I}_{\mathrm{B}}$ (D) $\mathrm{I}_{\mathrm{C}}=\mathrm{I}_{\mathrm{E}}+\mathrm{I}_{\mathrm{B}}$

   What is the relation of the transistor current?
(A) $\mathrm{I}_{\mathrm{B}}=\mathrm{I}_{\mathrm{C}}+\mathrm{I}_{\mathrm{E}}$
(B) $\mathrm{I}_{\mathrm{C}}=\mathrm{I}_{\mathrm{E}}+\mathrm{I}_{\mathrm{B}}$
(C) $\mathrm{I}_{\mathrm{E}}=\mathrm{I}_{\mathrm{C}}+\mathrm{I}_{\mathrm{B}}$
(D) $\mathrm{I}_{\mathrm{C}}=\mathrm{I}_{\mathrm{E}}+\mathrm{I}_{\mathrm{B}}$

JEE Physics

StemEZ 1st Edition

Chapter 40, Problem 2935

Instant Answer

Solved by Expert Narayan Hari

10/05/2021

Step 1

This is because the emitter emits the total current which is divided between the base and the collector. Show more…

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What is the relation of the transistor current? (A) $\mathrm{I}_{\mathrm{B}}=\mathrm{I}_{\mathrm{C}}+\mathrm{I}_{\mathrm{E}}$ (B) $\mathrm{I}_{\mathrm{C}}=\mathrm{I}_{\mathrm{E}}+\mathrm{I}_{\mathrm{B}}$ (C) $\mathrm{I}_{\mathrm{E}}=\mathrm{I}_{\mathrm{C}}+\mathrm{I}_{\mathrm{B}}$ (D) $\mathrm{I}_{\mathrm{C}}=\mathrm{I}_{\mathrm{E}}+\mathrm{I}_{\mathrm{B}}$

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Key Concepts

Kirchhoff's Current Law (KCL)

Kirchhoff's Current Law is a principle in circuit analysis stating that the total current entering a junction must equal the total current leaving the junction. In the context of a BJT, this law explains why the emitter current (IE) equals the sum of the base current (IB) and the collector current (IC), as it reflects the conservation of charge at the transistor's junctions.

Bipolar Junction Transistor (BJT) Currents

In a BJT, there are three main currents: the emitter current (IE), the collector current (IC), and the base current (IB). The fundamental relation between these currents is that the emitter current is the sum of the collector and base currents (IE = IC + IB). This relation ensures that the charge carriers injected by the emitter are either collected at the collector or lost at the base, which is essential for understanding the operation of BJTs in amplification and switching applications.

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