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a) Explain what is meant by the term "Heat Energy"
b) An Aluminium bar 0.5m long, initially at 20°C is heated until its temperature rises by 50 0C. Determine the change in length of the bar that will occur.
c) Describe what is meant by the term "Adiabatic expansion"
d) Describe what is meant by the term "Thermal Resistance"
True or False. The specific gravity of a fluid that sinks in water is greater than 1.00.
the energy stored in the capacitor decreases with time as the capacitor discharges. After how many time constant is this stored energy one forth its initial value
Lead: Atomic number 82 Symbol Pb Atomic weight 207.2 Discovery Known since pr
EXPLANATION: Displacement is a physical quantity which defines the motion of a body from its starting position to its final position. It is a vector quantity and can be shown b
Refractive index: The most important optical measurement for any transparent material is its refractive index (n). The refractive index is the ratio of the speed of light (c)
What is an intrinsic semiconductor? How can this material be changed into (i) P-type (ii) N-type extrinsic semiconductor? Describe with the help of energy band diagrams
what is poission''s equation?Establish poisson''s equation for space distribution of charges.discuss its significance.
A load of P59 kN acts at right angles to the beam AB. The angle of the beam to a horizontal x axis at A is P60. The supports are a pin joint at A and a Rocker at B. Determine the
Magnification is the ratio of size of image to the size of object. hence it is a dimensionless constant. It has no units. 1/m is not its unit.(1/m is the unit of power=DIOPTRE)
A long solenoid is fabricated by closely winding a wire of radius 0.5 mm over a cylindrical nonmagnetic frame so that the successive turns nearly touch every other. What would be t
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