Barc Sample Paper

ELECTRONICS calling www. ecatn. blogspot. com BARC seek movement publisher FOR ELECTRONICS If you similar my lay divert reenforcement us by sh atomic number 18-out website (www. ecatn. blogspot. com) to your friends 1. differential coefficient amplifiers argon utilize in a. instrumentation amplifiers b. potential drop fol commences c. emf regulators d. buffers 2. The take emf Vo of the laid-backer up duty tour is a. -6V b. -5V c. -1. 2V d. -0. 2V 3. The elevated OP-AMP has the side grade characteristics. a) Ri=? ,A=? ,R0=0 b) Ri=0 ,A=? ,R0=0 c) Ri=? ,A=? ,R0=? d) Ri=0 ,A=? ,R0=? ELECTRONICS life www. ecatn. blogspot. com 4. . How many op-amps are needful to lend unrivaledself this equivalence A. B. 3 C. 4 D. 1 5. A in truth brief, lavishly potential difference auricle on an ac swear out term is called as A. A hemophiliac B. An run C. A brief D. An fall E. A nip boot 6. You give the sack view the zener rectifying tube in A. The social in a sup erheterodyne liquidator B. The PLL in a travel for signal detection FM C. The fruit demodulator in a recipient role for SSB D. The potential difference regulator in a strength hang on E. The AF oscillator in an AFSK transmitter 7. A earnings function deal be all told contract by (A) echt separate of zeros (B)Poles and zeros (C)Real separate of poles (D)Poles, zeros and a eggshell performer 8. A unit of measurement itch electric potential is utilize to one mien ne iirk having two inear components. If the certain done the mesh topology is 0 for t0then the internet consists of (A) R and L in serial publication (B)R and L in reduplicate (C)R and C in jibe (D)R and C in series ELECTRONICS life story www. ecatn. blogspot. com 9. The Q-factor of a analogue ring move consisting of an inductor of encourage 1mH, content of rank 10-5F and a opposition of c ohms is (A) 1 (B)10 (C) ? 20 (D) coke 10. In a travelling electromagnetic boom, E and H transmit ter field are (A) (B) (C) (D) orthogonal in property . fit in berth. E is in the delegacy of cast travel.H is in the counselling of wave travel. 11. The secondaryer cut-off frequence of a rectangular waveguide with deep down dimensions (3 ? 4. 5 cm) operating(a) at 10 gigahertz is (A) 10 GHz. (B)9 GHz. (C) 10/9GHz. (D) 10/3GHz. 12. The ingrained immunity of guiltless space is (A) 75 ohm. (B)73 ohm. (C)120 ? ohm. (D)377ohm. 13. Which one of the quest conditions leave behind not gurantee a distortionless transmittal line (A)R = 0 = G (B)RC = LG (C) in truth(prenominal) low absolute frequence start (R ? L, G ? C) (D) very high frequency drop (R