Objective Questions Short notes Objective questions (Answers are given below) The main job of a voltage regulator is to providea nearly—output voltage.(a) sinusoidal (b) constant(c) smooth (d) fluctuating. A 10-V dc regulator power supply has a regulationof 0.005 per cent. Its output voltage willvary within an envelope of ……………….. millivolt.(a) ± 2.5 (b) ± 0.5(c) … Read more
Objective Questions Short notes Objective questions (Answers are given below) The ripple factor of a power supply is ameasure of(a) its filter efficiency(b) its voltage regulation(c) diode rating(d) purity of power output. The basic reason why a FW rectifier hastwice the efficiency of a HW rectifier is that(a) it makes use of a transformer(b) its … Read more
Objective Questions Short notes Objective questions (Answers are given below) The main purpose of modulation is to(a) combine two waves of different fre- quencies(b) achieve wave-shaping of the carrier wave(c) transmit low-frequency information overlong distances efficiently(d) produce sidebands. Demodulation(a) is performed at the transmitting station(b) removes side-bands(c) rectifies modulated signal(d) is opposite of modulation. In … Read more
Objective Questions Short notes Objective questions (Answers are given below) First integrated circuit chip was developed by(a) C.V. Raman(b) W.H. Brattain(c) J.S. Kilby(d) Robert Noyce. An integrated electronic circuit is(a) a complicated circuit(b) an integrating device(c) much costlier than a single transistor(d) fabricated on a tiny silicon chip. Most important advantage of an IC is … Read more
Objective Questions Short notes Objective questions (Answers are given below) An OP-AMP can be classified as …………. amplifier.(a) linear(b) low-rin(c) positive feedback(d) RC-coupled. An ideal OP-AMP has(a) infinite Aν(b) infinite Ri(c) zero R0(d) all the above. OP-AMP have become very popular in industrymainly because(a) they are dirt cheap(b) their external characteristics can bechanged to suit … Read more