What is meant by the depletion layer in a \(p\)-\(n\) junction?
What is plane polarized light? How is polarized light obtained by refraction? State the uses of polaroid.
In a Silicon p-n junction diode, for 20 V forward voltage, the forward current produced is 10 mA. Calculate its forward resistance.
(b) Order of the differential equation: $ 5x^3 \frac{d^3y}{dx^3} - 3\left(\frac{dy}{dx}\right)^2 + \left(\frac{d^2y}{dx^2}\right)^4 + y = 0 $