GATE EC 2013 Question Paper (10-Feb-2013) (Shift 2)

A bulb in a staircase has two switches, one switch being at the ground floor and the other one at the first floor. The bulb can be turned ON and also can be turned OFF by any one of the switches irrespective of the state of the other switch. The logic of switching of the bulb resembles

Consider a vector field $\vec{A}\left(\vec{r}\right)$. The closed loop line integral $\oint \vec{A}\cdot d\vec{l}$ can be expressed as

Two systems with impulse responses h₁(t) and h₂ (t) are connected in cascade. Then the overall impulse response of the cascaded system is given by

In a forward-biased PN junction diode, the sequence of events that best describes the mechanism of current flow is

In IC technology, dry oxidation (using dry oxygen) as compared to wet oxidation (using steam or water vapor) produces