BARC Quiz 17

Consider the following RC circuit. The capacitor has an initial charge q₀ such that it opposes the flow of charging current:

The response of the circuit i(t) will be

The open-loop transfer function of a unity feedback control system is The closed-loop transfer function will have poles at.

In the circuit shown in figure, A is a parallel in, parallel–out 4–bit register, which loads at the rising edge of the clock C. The input lines are connected to a 4–bit bus, W. Its output acts as the input to a 16 × 4 ROM whose output is floating when the enable input E is 0. A partial table of the contents of the ROM is as follows :



The clock to the register is shown, and the data on the W bus at time t₁ is 0110. The data on the bus at time t₂ is

For an 8 feet (2.4 m) parabolic disk antenna operating at 4 GHz, the minimum distance required for far field measurement is closest to

C-V characteristics of silicon MOS capacitor having an area of 10^-4 cm² is shown. The permittivity’s of silicon and SiO₂ are respectively 10^-12 F/cm and 3 .5 x 10^-13F/cm, then maximum depletion layer width in silicon is