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The op amp shown in Figure has an input bias current of 100nA at 20?C. Measure
(a) The voltage gain, and
(b) The output offset voltage due to the input bias current.
(c) How can the effect of input bias current be minimized?
If we permit monochromatic light to fall normally on the surface of lens, then circular interference fringes of radius r can be consider in the reflected light. This circular fring
Write the relation for the force acting on a charge carrier q moving with a velocity by a magnetic field in vector notation. Using this relation, reduce the conditions under which
Explain the term poly elastic and give some of example.
Write about the main features in which Fresnel and Fraunhoffer approaches of diffraction differ? Mention some (at least four) applications of diffraction.
why at critical temperature in superconductors resistance becomes zero? Solution) For conductors as the temperature increases their rasistance increases and as temperature decreas
why The magnitude of known potential difference must be greater than the value of unknown potential difference to be measured.
A cube of side ‘a' is moving with speed 0.6 c normal to one of its face. What is its volume observed by an observer stationed on the earth ? The volume of cube = a x a x a = a 3
Commutator: The commutator is a form of rotating switch placed among the armature and external circuit and so arranged that it will reverse the link with the external circuit a
pseudo force: A "force" that arises since an observer is naively treating an accelerating frame like an inertial one.
how is the image formed on the retina?
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