Monday, 5 September 2011

EMI questions

  1) static & dynamic errors.list out types of errors in measurement.

2)(a)  what are required of shunt? how a basic ammeter converted to multi range ammeter?
    (b) a 10 ma d'arsonwal meter moment having an internal resistance of 100 ohms is used to converted into a                  multi range ammeter having range of 0-1A,0-5a & 0-20A. determine the value of shunt resistance required.

3) (a) how a PMMC can be used as a multi range voltmeter & a series type ohmmeter
     (b) calculate the value of multiple resistance for the multi range dc voltmeter for 0-20,0-50,0-100v whose full scale deflection is 50uA & meter resistance 500ohm.

4) (a) dual type DVM
  (b) compare the performance of electrophoretic image display & liq. vapor display

5) exp operation of
(a) function generator  (b) random noise generator

6) basic analyzer operation & RF Heterodyne wave analyzer.

7) what is spectrum analyzer? exp the operation of (a) parallel filter bank analyzer
                                                                       (b) spectrum analyzer with swept receiver

8) (a) DC whetstone bridge  & diff between basic circuit of kelvin bridge & Wheatstone bridge
    (b) Wagner's ground bridge

9)  Maxwells bridge and problem

10) Anderson bridge & problem