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A force of 2.5kN is needed to lift a load. How much work is done if the load is lifted by 500cm?
An electromagnet exerts a force of 12N and moves a soft iron armature by a distance of 1.5cm in 40ms. Find the power consumed.
A mass of 500kg is raised to a height of 6m in 30s. Find
(a) the work done and
(b) the power developed
Q. Will a DC motor really produce voltage if it is spun in reverse? Answer:- It will produce voltage if you spin it forwards too. The merely difference between a DC motor
Electromagnetism: If a straight wire carrying a current is formed into a circular loop, the magnetic field is as shown. The field may be deduced by taking elements of the
A block of mass 2 kg is pulled up on a smooth incline making angle 30 degrees with horizontal . if block moves with an acceleration of 1 m/s2 , find a) Power delivered by the pull
When the two junctions of a thermo couple are maintained at dissimilar temperatures, then a light begins going through the loop called as thermo electric current.
Q. Define: binding energy. The energy equal of mass defect is called as binding energy. ∴ Binding energy = [Zm P + Nm n - m] c 2 = Δm c 2 . Here, Δm is the mass defe
short questions
How would you describe in one word fiber optics lighting system? Magic is the one word for describing fiber optic in one word.
what is mirage
What is an effect wheel? A disc of polycarbonate or metal revolving among the lamp and the common end along with holes, slits, patterns or colors.
If a traveling wave is a sin or cos function of (x± vt) the wave than it is said to be harmonic or plane progressive wave.
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