GATE EC 2014 Question Paper (16-Feb-2014) (Shift 1)

A series RC circuit is connected to a DC voltage source at time t = 0. The relation between the source voltage V${}_S$, the resistance R, the capacitance C, and the current i(t) is given below:

$V_s=Ri\left(t\right)+\frac{1}{C}\underset{0}{\overset{t}{\int }}i\left(u\right)du$

Which one of the following represents the current i(t) ?

In the figure shown, the value of the current I (in Amperes) is __________.

In MOSFET fabrication, the channel length is defined during the process of

A thin P-type silicon sample is uniformly illuminated with light which generates excess carriers. The recombination rate is directly proportional to

At T = 300 K, the hole mobility of a semiconductor μₚ = 500 cm²/V-s and $\frac{kT}{q}=26mV$. The hole diffusion constant Dₚ in cm²/s is _______