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CELL EMF:
The size of a cell has no bearing on the emf that it will produce, the generated emf being determined solely by the materials used in its construction. Another point to note is that the potential difference, or voltage measured across the terminals of a cell, is not the same as the emf generated by the cell. The terminal voltage of a cell depends on the:
Q. The voltage increase of an amplifier without feedback is 100. If negative feedback is functioned with feedback fraction 0.1, compute the voltage gain with feedback. A F
why dark spot appears on newton''s ring?
Mention two salient features of immunity theory of ageing. Write the full form of ESR. What does the increase in ESR indicate?
In general the total energy of a harmonic oscillator having of two parts, potential energy (P.E) and kinetic energy (K.E.), the former being because of its displacement from the m
A medium is characterised by relative permittivity ε r =45 and relative permeability μ r =5. Determine the speed of e-m wave in the refractive and medium index of the medium.
Galilean Relativity Galilean invariance or Galilean associatively states which the laws of motion are the similar within all inertial frames. Galileo Galilei first define this
Horizontally Launched Projectiles Suppose a cannonball being launched from cannon atop a extremely high cliff. Imagine as well in which the cannonball does not encounter a impo
A skydiver falls d1 = 495 meters in t1 = 22 s before opening his parachute. After the chute opens, he falls an additional d2 = 470 meters in t2 = 56.5 s. (a) Write an expression t
two balls connected by massless string wherein the first ball A is confined to a plane surface with frection and the second ball B, due to the string’s passage through a small hol
Electricity: The flow of electron is known as electricity.
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