Materials and Components - Section 1

Which of the following are donor impurities?

1.Gold

2.Phosphorus

3.Boron

4.Antimony

5.Arsenic

6.Induim

Select the correct answer using the following codes

In a true valence crystal, the bonding between the atoms is accomplished by the sharing of valence electrons.

The number of valence electrons in donor impurity are

The apparent capacitance at a high angular frequency ω of an air cored capacitor having capacitance C and inductance L is given by

If a piece of wood is placed in a magnetic field

Assertion (A): If E is available energy state eV and EF is Fermi level, then probability of energy state E being occupied = 0.5.

Reason (R): 

Assertion (A): From the slope of the line in Figure, we can find permanent dipole moment of the molecules.

Reason (R): Total polarization of a polyatomic gas is given by P = N(ae + ai + μ2p / 3kT)E.

Assertion (A): For a solenoid having N turns,

Reason (R): For all magnetic materials, B increases linearly with I.