Two long parallel conductors carrying currents in opposite directions______________ each other

Options:

(a) Attract

(b) Repel

(c) Noeffect on

(d) None of these

In a sampled data control system if the band width is 2Hz than the lowest sampling frequency is

Options:

(a) 2Hz

(b) 3Hz

(c) 4Hz

(d) 3/2Hz

A constant voltage is applied across the ends of a conductor, the heat produced is

Options:

(a) directly proportional to length

(b) inversly proportional to length

(c) directly proportional to square of length

(d) none

The intended frequency of operation of dipole antenna of cutoff wavelength of 3.5m is

Options:

(a) 21.45MHz

(b) 85.8MHz

(c) 100.5MHz

(d) 42.9MHz

A memory system of size 26K bytes is required to be designed using memory chips which have 12 address lines and 4 data lines each. The number of such chips required to design the memory system is-

Options:

(a) 2

(b) 4

(c) 8

(d) 13

Technology used for manufacturing of RAM for computing devices is

Options:

(a) NMOS

(b) PMOS

(c) CMOS

(d) FET

A carrier voltage frequency is 1MHz and modulating signal frequency is 5KHz. Calculate the frequency of lower side band and upper side band in case of Amplitude modulation.

Options:

(a) 990KHz and 1005KHz

(b) 995KHz & 1110KHz

(c) 1000KHz & 1005KHz

(d) 995KHz & 1005KHz