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Two concentric conducting shells a and b are of radii R and 2R. A charge +q is centred at their center. Shell b is then earthed and a is given charge q. Find the charge on outer surfaces oboth shells.
Ans) THE charge on outer surface of A will be 2q and outer surface of B will be zero due to earthing charge on b will flow to earth.
Image Formation for Concave Mirrors - Case B To see an object in any kind of mirror, a person must sight along a line at the image of the object. Every person capable of seeing
Superposition principle of forces The net force onto a body is equivalent to the total forces impressed upon it. superposition principle of states The resultant qu
Determine the Shear Force in kN rounded to 1 DP and Bending Moment in kN.m rounded to 1 DP at point C in the beam when the distance CB is P53 m. Then determine the axial force roun
An infinite line of positive charge lies along the y axis, with charge density ? = 1.90 µC/m. A dipole is placed with its midpoint along the x axis at x = 22.00 cm. The dipole cons
The fraction of vacancy sites in a metal is 1X10 -10 at 500 0 C. What will be the fraction of vacancy sites at double the temperature?
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Some wire of cross-sectional area 1mm 2 has a resistance of 20 ?. Determine (a) the resistance of a wire of the same length and material if the cross-sectional area is 4mm 2 ,
A copper wire whose diameter is 0.16 cm carries a steady current of 10 A. What is the current density of the wire?Also calculate the drift velocity of the electrons in copper.
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One way to keep the contents of a garage from becoming too cold on a night when severe subfreezing temperature is forecast is to put a tub of watering the garage. Assume the mass o
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