Question
Explain current flow in N- and P-type semiconductors.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
More "2 Marks Questions" from Semiconductor Electronics: Materials, Devices and Simple Circuits→Semiconductor Electronics: Materials, 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
Write formula for Bohr's orbit radius for hydrogen atom.
The luminous flux of a monochromatic source of 1W is 450 lumen/ watt. Find the relative luminosity at the wavelength emitted.
- Find the first excitation potential of $\mathrm{He}^{+}$ion.
- Find the ionization potential of $\mathrm{Li}^{++}$ion.
What is electron emission ? Explain its types.
The force between two point charges kept at a distance r apart in air is F. If the same charges are kept in water at the same distance, how does the force between them change?
Draw a plot of the binding energy per nucleon as a function of mass number for a large number of nuclei, 2⩽ A⩽240. How do you explain the constancy of binding energy per nucleon in the range 30 < A < 170 using the property that nuclear force is short - ranged?
Explain Biot$-$Savart Law.
→Resistance of a galvanometer is $30 \Omega$. A current of 2 mA gives full scale deflection in it. Calculate the necessary resistance required to make it an ammeter of range $(0-0.3 A)$.
→An $\alpha$-particle moving with initial kinetic energy $K$ towards a nucleus of atomic number $Z$ approaches a distance $d$ at which it reverses its direction. Obtain the expression for the distance of closest approach $d$ in terms of the kinetic energy of $\alpha$-particle $K$.
→A string is wrapped over the edge of a uniform disc and the free end is fixed with the ceiling. The disc moves down, unwinding the string. Find the downward acceleration of the disc.