Question
Conduction occurs in semiconductors :

Answer

(b) - bipolar

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

Similar questions

A long magnetic needle of length $2L,$ magnetic moment $M$ and pole strength $m$ units is broken into two pieces at the middle. The magnetic moment and pole strength of each piece will be
A lens behaves as a converging lens in air and a diverging lens in water. The refractive index of the material is(a) Equal to unity(b) Equal to 1.33(c) Between unity and 1.33(d) Greater than 1.33
   
   
Which of the following is not reversible(a) Joule effect(b) Peltier effect(c) Seebeck effect(d) Thomson effect
       
A resistance of $4 \Omega$  and a wire of length $5$ metres and resistance $5 \Omega$  are joined in series and connected to a cell of $\text{e.m.f.} 10 V$ and internal resistance $1 \Omega.$ A parallel combination of two identical cells is balanced across $300 \ cm$ of the wire.  The $\text{e.m.f. E}$ of each cell is
Out of the following, which colour's wavelength is more than the wavelength of yellow colour?
The following four wires are made of the same material and are at the same temperature. Which one of them has highest electrical resistance(a) Length = 50 cm, diameter = 0.5 mm(b) Length = 100 cm, diameter = 1 mm(c) Length = 200 cm, diameter = 2 mm(d) Length = 300 cm, diameter = 3 mm
   
   
Brilliance of diamond is due to(a) Shape (b) Cutting(c) Reflection(d) Total internal reflection
   
   
The structure of solid crystals is investigated by using (a) Cosmic rays(b) X-rays(c) Infrared radiations(d) γ -  rays
       
When the speed of electrons increases, then the value of its specific charge(a) Increases (b) Decreases(c) Remains unchanged(d) Increases upto some velocity and then begins to decrease
 
 
 
 
A capacitor of 4μ F is connected as shown in the circuit (Fig.). The internal resistance of the battery is 0.5Ω. The amount of charge on the capacitor plates will be: