Hall effect and PN junction diode

In the Hall Effect, the directions of electric field and magnetic field are parallel to each other.

The above statement is

• a) True

• b) False

The Hall coefficient R_H

• ne

• 1/ne

• e/n

• n/e

If the Hall coefficient is negative it is a------ type of semiconductor

• P-type

• N-type

• Intrinsic

• Extrinsic

The majority charge carriers in p-type semiconductors are

• holes

• electrons

• both electrons and holes

• none f the above

The energy gap in silicon is

• 0.3 eV

• 0.7 eV

• 1.1 eV

• 0.5eV

The region which is depleted of mobile charge carriers is called

• a) Depletion region

• b)Potential Barrier

• Both a and b

• None f the above

The width of depletion region is

• 1 $\mu$ m

• 2 $\mu$ m

• 3 $\mu$ m

• 4 $\mu$ m

In unbiased condition the total current due to drift and diffusion is

• increases

• decreases

• zero

• All the above

In forward biased condition the width of potential barrier

• increases

• decreases

• zero

• All the above

In reverse bias the reverse saturation current is due to

• minority charge carriers

• majority charge carriers

• electrons

• holes