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Q. Give applications of emitter follower The emitter follower has the following principal applications: 1. To provide current amplification with no voltage gain 2. Impede
a) In the United States, the Federal Communications Commission (FCC) is charged with the regulation of radio and wire communication (FCC part 15). It basically sets limits on the
Q. Explain the working of a darlington pair? This is two transistors connected together so that the current amplified by the first is amplified further by the second transistor
Direct data addressing mode (with examples) available in microprocessors. Direct Mode: Instruction comprises memory access. CPU accesses which location into memo
Q. How speech is transmitted in digital switching environment by using PCM/TDM? Ans: A digital carrier system is a communications system which uses digital pulses instead of
The magnetic fields can be plot by using: i. Compass ii. Iron dust method .
Q For a parallel-plate capacitor with plates of area A m 2 and separation d m in air, the capacitance in farads may be computed from the approximate relation Compute the a
Q. For the 4-bit D/A converter of Figure with V ref =-5 V, determine the range of analog output voltage and the smallest increment. Ans. The binary input range is from 0
Q. A 10-kVA transformer is known to have an iron loss of 150 W and a full-load copper loss of 250 W. If the transformer has the following load cycle, compute its all-day efficiency
Define addressing modes of 8085. a) Immediate addressing b) Register addressing c) Direct addressing d) Indirect addressing e) Implicit addressing
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