Question

Give its advantages
Section-E
6. What is light emitting diode (LED) ? Draw a
diagram and explain its working Give its ad
over incandescent lamps.
Or Explain the working of solar cell and write itsuse
7. Prove that the couple acting on a current loop placed
uniform radial magnetic field ist = NAB Symbole
their usual meaning.
Or Show that in a series resonant circuit current
voltage are in the same phase in resonance condition
The wave of wavelength 300 m is transmitted from
transmission centre.
A condenser of 24 uF is available. Calculate the
inductance of coil required for resonant circuit
8. What is meant by mutual induction? Define coefficient of
mutual inductance. Establish the formula for the mutual
inductance of two plane coils.
Or What is Huygens' theory of propagation of light waves?
Explain the refraction phenomenon of light with its help
9. What is Gauss' law? Obtain the formula of electric Geld
at a point outside the surface of a uniformly charged
spherical shell with its help.
Or The oscillating electric field of an electromagnetic wave
is given by E, = 30 sin(2x 10"1+300.x) voltm Find
out:
(1) wavelength of the electromagnetic wave
(ii) amplitude of magnetic field
(11) equation of oscillating magnetic field.




plz help..​

Answer 1

Answer:

it is a kind of PN junction p type material known as anode n type material known as cathode