GATE EC 2015 Set 3 — Question 55

NAT+2 / -0MediumCurrent Gain ParametersBJTElectronic DevicesBiasing Regions

Electronic Devices → BJT → Biasing Regions

Last updated 5 September 2026

Question

I_s = 10^{-15}

I_C = I_s e^{V_{BE}/V_T} = 10^{-15} e^{700/25} = 10^{-15} e^{28} \approx 1.446257 \times 10^{-3}

Review answer and solution without JavaScript

Interactive answer checking needs JavaScript. The published solution is available below.

I_C = I_s e^{V_{BE}/V_T} = 10^{-15} e^{700/25} = 10^{-15} e^{28} \approx 1.446257 \times 10^{-3}

Continue learning with Success Tracker

Use Success Tracker to ask about the reasoning, then try another GATE EC question to check your understanding.

AI-powered practice· Unlimited practice on eligible plans

PYQs with solutions: Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
Practice that adapts: Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
AI doubt support: Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.

Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.

This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.