APGenco Question Papers 2009.
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** Kirchoff’s nodal equations based on the principle of
** If the Supply voltage is increased by n times, the cross section of conducter will [increase/decrease] by ________ times ?
** Memory word size of 8085 microprocessor?
** Flip flop used in shift register
** And gate
** Static electricity is formed for?
** Cc has current gain and input impedance ?
** If geta=1, the roots of cequ are
** For a 6db attenuator , if input power is 100MW ,o/p power will be =?
** For a perfectly matched tx line , reflection coefficient=?
** Radiation pattern of isotropic radiator is
** Amplitude limiter essentially a
** Waveguide acts as
** The Frequency is measured by _________ bridge ?
** x-band rangeis
** reflection coefficient is zero , then the line is
** Dynamic memory cells are constructed using
** Which of the following is most efficient
** Which of the following has higher bandwidth
** Essential channel capacity is a measure of
** Lossless line condition is?
** The Source internal resitanse Rs , When equal to Load resistance RL, the maximum transfered is of _____ % of input power?
** Typical bit rate of keyboard devices ?
** 16 in octal s/m is?
** No of bits represents 16 is
** F(t)=t e at, F(S)=?
** F(S)=1/(s+a)2, f(t) =?
** 16 bit width ,8085 mapps ans 64kilobytes
** Which of the following flipflop doesn’t have race problem?
** Dominant mode TE10
** Wave length in waveguide equal to ,greater than , lessthan ,independent of free space wave length
** Half adder has how many ips and ops
** Magnetron is
** Bethe-hole coupler uses
** Power gain=40 : Voltage gain=200 : Current gain=?
** Tfunction=k(s+1)/s(s-2+j3)(s-2-j3), no of poles=?
** Tfuncion 1-s/1+s , it is known as
** G=k/s2(1+sT)then order and type=?
** Which of the following component is passive and reciprocal
** Broad side array interelement phase shift is
** R=100ohms,C=100pf, TIME CONST=?
** Isotropic antenna gain is
** In one timeconstant the final value increases by _____________value
** ABCD PARAMETERS of ELECTRICAL SYMMETRY: Ad-bc=1
** s-equation of L DI/DT
** In a CE amplifier ,if a C.E voltage increase
** Transfer function has 2poles on L.HS PLANE and 2zeros on r h s plane this results
** The gain at corner frequency is?
** t.v s/m am- picture,fm-sound
** code used in teleprinter
** Bandwidth =resonant frequency/qualityfactor
** Differentiation of u(t)?
** Freespace impedance?
** Resonant frequency of rlc ckt is ?
** bandwidth of telephoneis
** bit is a unit of
** when 2 n/w are connected in parallel
a. z-parameter add
d. abcd parameter
** beamwidth of antenna is
** Convolution of two u(t)?
** T function H(s)=1/(s+1),h(f)=?
** F(s)=1/s2, then f(t)?
** Fourier series expansion of a even periodic function contains ?
** If ip of ckt is sine , the steady state op willbe exponentially decay with time const,sin , damped sinusoidal
** Power gain of emitter follower?
** Highest voltage gain can be obtained from
** Differentiation of time domain is equal to
** Standard rect waveguide width to height ratio
** Which is micro wave oscillator
** If transmission line open ckt then vswr?
** Is Pn junction reversebiased ?
** Typical q factor of crystal oscillator
** In pnp transistor saturation current is due to
** When both junction of a transistor is forward biased then it is said to be in
** 50ohms line matched to 200 ohms load through quarter wavelength transmission , the characteristic impedance of matched line should be
** Hall effect used to measure?
** P type semiconductor properties?