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astigmation control in most modern oscilloscopes there is an additional focusing control markedastigmation. this is used to correct an effect which
synchronization whatever type of weep is used it must be synchronized with the signal being measured. synchronization has to be done to obtain a
blanking circuit the saw tooth sweep voltage applied to the x places moves beam across the crt tube in a straight horizontal line from left to right
sol. ramp type vm the operating principle of the ramp type dvm is based on the measurement of the time it takes for a linear ramp voltage to rise
potentiometric type dvm a potentiometric type of dvm employs voltage comparison technique. in this dvm the unknown voltage is compared with a
transistor voltmeter tvm a simple diagram of tvm using two transistors in the bridge configuration is as shown.tvm is provided by using transistor
q. explain the working principle of an electronic voltmeter.sol. electronic voltmeter basic voltmeter the addition of a series resistor or
q. explain the measurement of frequency in detail by using weins bridge.sol. the weins bridge is presented here not only for its use as an ac
q. how and why are the grounding and shielding used in electronic instruments?sol. in electronic instruments grounding and shielding techniques
q. explain digital frequency meter.orexplain principle of digital frequency meter and discuss utility of time base selector with suitable
q. explain the working principle of a q meter. also explain the factors that cause errors during a q factor measurement.ans. working principle of
q. explain how phase angle measurement are carried out with vector impedance meter. sol. impedance measurements are concerned with both
q. give suitable block diagram to explain the working of electronic multimeter.sol. an electronic multimeter is a laboratory instrument which is
q. explain the block diagrtam of d.c. voltmeter with direct coupled amplifier.sol. d.c voltmeter with direct coupled amplifier
the two sides of a triangle are 17 cm and 28 cm long and the length of the median drawn to the third side is equal to 19.5 cm. find the distance from
i have selected this paper as my semester project according to teacher we have to fully implement it. i need its full written matlab code simulink
if a single energy eigen value corresponds to more than one eigen function then degeneracy is said to be exist and the number of wave function
wave function is a complex quantity which itself has no physical significance. but square of its magnitude gives the probability of finding a
according to this it is impossible to specify precisely and simultaneously two physical quantities those are canonically conjugate to each other and
when a beam of monochromatic x ray is incident on a graphite block it get scattered and scattered wavelength is larger than that of the incident
when light of frequency greater than threshold frequency fall on a metal surface electrons are emitted out from metal surface this effect is known as
q. what do you mean by diffraction? distinguish between fresnels and fraunhofers classes of diffraction.ans. the phenomena of diffraction in case
it consists o a source of x ray with a number of collimated slits. crystal under investigation is mounted on a table and the position of this table
q. explain braggs law. a monochromatic x-ray is incident on a crystal. by rotation the crystal two successive reflections are obtained at angles
q. explain rayleigh criterion of resolution. what is meant by resolving power of grating?ans. resolving poweri meaning of resolution the