Download App

Semiconductor Electronic: Material, Devices And Simple Circuits — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsSemiconductor Electronic: Material, Devices And Simple Circuits1 Mark
MCQ
An intrinsic semiconductor is:
  • A
    Undoped
  • B
    Doped
  • C
    Can be undoped or doped
  • D
    Semi-doped
✓

Answer

  1. Undoped

Explanation:

Doping is a process of adding impurities in a semiconductor. Doped semiconductors are known as extrinsic semiconductors and others are known as intrinsic ones.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Semiconductor Electronic: Material, Devices And Simple Circuits→Semiconductor Electronic: Material, Devices And Simple Circuits — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

If a current is passed through a spring then the spring will:
→
A compass needle, which shows the direction at the earth's magnetic pole is:
→

Which of the following is used to produce radio waves of constant amplitude

(a) Oscillator

(b) FET

(c) Rectifier

(d) Amplifier
→

The length of a magnet is large compared to its width and breadth. The time period of its oscillation in a vibration magnetometer is 2 s. The magnet is cut along its length into three equal parts and three parts are then placed on each other with their like poles together. The time period of this combination will be

(a) 2 s

(b) 2/3 s

(c) 2  

(d) 2/ 
→
An open organ pipe of length L vibrates in its fundamental mode. The pressure variation is maximum.
  1. At the two ends.
  2. At the middle of the pipe.
  3. At distances $\frac{\text{L}}{4}$ inside the ends.
  4. At distances $\frac{\text{L}}{8}$ inside the ends.
→

An electric field of 1500 V / m and a magnetic field of  0.40 weber / meter2 act on a moving electron. The minimum uniform speed along a straight line the electron could have is

(a) 1.6  × 1015 m / s

(b) 6 × 10-16 m / s

(c) 3.75 × 103 m / s

(d) 3.75 × 102 m / s
→
Electric field is a _______?
→

A particle moving in a magnetic field increases its velocity, then its radius of the circle

(a) Decreases

(b) Increases

(c) Remains the same

(d) Becomes half
→

Two circuits have mutual inductance of 0.1 H. What average e.m.f. is induced in one circuit when the current in the other circuit changes from 0 to 20 A in 0.02 s

(a) 240 V                                            

(b) 230 V

(c) 100 V

(d) 300 V
→

Shift by which the object appears to be raised depends on:

→