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Q. Jingdan turned a screwdriver into a magnet by rubbing it with a strong bar magnet to pick up a screw that has fallen into an inaccessible spot.
How could he demagnetize his screwdriver after picking up the screw?
He could drop it, heat it, hit it with a hammer, or somehow otherwise jiggle the magnetic domains into randomness.
Spin-orbit effect An influence that causes atomic energy levels to be split since electrons have intrinsic angular momentum (spin) additionally to their extrinsic orbital angul
if length changes then there is change in the time period how to solve these questions regards
Q. W hat will be effect on Newton's rings if; (i) A little oil (µ = 1.65) is introduced between the lens (µ - 1.5) and the glass plate (µ = 1.75). (ii) A Pla
In the figure below, the hand moves the end of the Slinky up and down through 2 complete cycles in 1 seconds. The wave moves along the Slinky at a speed of 0.60 m/s. Find the dista
Q. Figure s (a) and (b) show refraction of a ray in air incident at 60°with the normal to a glass Answer According to the given figure for the glass-air interface:
Stefan-Boltzmann law (Stefan, L. Boltzmann): The radiated power P (it is rate of emission of electromagnetic energy) of hot body is proportional to the radiating surface area,
The maximum and minimum magnitude of the resultant of two forces are 16 N and 4N.Measure t he magnitude of individual force. Let the two vector be a and b then maxim resultant
Derivative of the Sine Function Extending a tradition of complex interrelations between the trigonometric functions, it turns out in which the derivative of the sine function i
Define drift velocity and derive an expression for it?
A helium atom is in a galaxy travelling at a speed of 4.89 x 10 6 m/s away from the Earth. An astronomer on Earth observes a frequency from the helium atom of 6.52 x 10 14 H
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