Electronics and Communication Engineering [ Question No: 1 To 20 ] :
Decimal -90 equals __________ in 8 bit 2s complement
If the inputs to a 3 bit binary adder are 1112 and 1112, the output will be 110.
A decade counter skips
The resolution of an n bit DAC with a maximum input of 5 V is 5 mV. The value of n is
The F.T. of a conjugate symmetric function is always
Double integration of a unit step function would lead to
Assertion (A): A cycloconverter may be line commutated or forced commutated
Reason (R): A step up cycloconverter requires forced commutation.
A chopper
In satellite communication, highly directional antennas are used to
India's first domestic geostationary satellite 1NSAT-IA was launched on 10th April 1982 from
Vividh Bharati programme is transmitted in
When a superheterodyne receiver is tuned to 455 kHz, its local oscillator provides a mixer with the input at 1010 kHz. The image frequency is
A heterodyne frequency changer is called a
A duplexer is a device used to
The maximum shift which can be provided by a lead compensator with transfer function 
is
Potentiometer method of dc voltage measurement is more accurate than direct measurement using a voltmeter because
The degree of the nodes 1, 2, 3, 4 is
In carbon resistor colour code, if the third band is of silver, it indicates
Ferromagnetic materials
The conductivity of intrinsic semiconductor is given by
= 0.5 or Φm = 30°.