Semiconductor is made by doping a germanium crystal with a… | CGP Edu

Physics Semiconductor Electronics NEET Previous Year Question MCQ (Single Correct)

Semiconductor is made by doping a germanium crystal with arsenic . A second semiconductor is made by doping germanium with indium . The two are joined end to end and connected to a battery as shown. Which of the following statements is correct? [2012]

A

is

‐type,

is

‐type and the junction is forward biased

B

is

‐type,

is

‐type and the junction is forward biased

C

is

‐type,

is

‐type and the junction is reverse biased

D

is

‐type,

is

‐type and the junction is reverse biased

Text Solution

Verified by Experts

The correct answer is:

Arsenic has five valence electrons, so it is a donor impurity. Hence becomes − − type semiconductor. I.ndium has only three outer electrons, so it is an acceptor impurity. Hence becomes − − type semiconductor. Also is connected to positive terminal of battery and is connected to negative terminal of battery so − − junction is reverse biased.

Prepare Smarter with CGP Edu

Get practice questions, solutions, and test series in one place.

Write a Review

Share your experience with this question and solution.

Commentary

Send your comment, doubt, correction, or feedback to admin.

Student Reviews

What students say about this solution

No reviews yet. Be the first to write a review.

Similar Questions

Explore conceptually related problems

The intrinsic semiconductor becomes an insulator at

Which gate is represented by the following truth table? ABC001101011110

Current in the circuit will be [2001]

In a p‐n junction [2002]

For the given circuit of p‐n junction diode, which of the following statement is correct: [2002]

For a common base configuration of transistor , then maximum current gain in common emitter confi…

CG

CGP Question Assistant Question Bank + AI Help

Hi! Type your question or upload one screenshot. First I will search related questions from CGP Edu Question Bank. If none match, type YES and I will solve it with AI.

Upload only one screenshot at a time. Flow: Question Bank first → If not matched, type YES for AI solution.