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Describe how Dewar flasks limit energy transfer
A Dewar flask (thermos) is a device that resists energy transfer. Explain how Dewar flasks limit energy transfer by listing the equations for heat generated by conduction and heat generated by radiation and indicating which variables are minimized/maximized in order for heat transfer to be limited. Also address how Dewar flasks limit heat transfer via convection. Thanks in advance!
Give one advantage of a scanning electron microscope over a transmission electron microscope? The SEM has become more popular than the TEM as it can make images of high resolut
State two conditions which must be satisfied in order to apply tangent law in magnetism
Illustrate the formation of stationary waves in stretched strings and thus deduce the laws of transverse waves in stretched string.
Mass as a Measure of the Amount of Inertia: All objects resist alters in their state of motion because they have inertia. However some objects have more of a tendency to resist
Q. Give the basic assumptions made in free electron model of solid. OR Write down basic postulates of Sommerfield's free electron gas model. Show that the number of ene
tell the fixed transistor bias and describe the design
How is that circuit wont be broken even there is an air gap in between the parallel plates? Ans) In AC circuit capacitor offers resistance to current as aresistor would do in DC.
Shell type transformers: In this type of transformer the iron core surrounds the copper windings (fig. given below). The core is in the form of numeral 8. The entire flux pas
assignment on vernier caliper
A plane diffraction grating of width 2.5cm has 1500 rulings. Monochromatic light of wave length 5893A 0 is incident normally on it. Determine the angle at which second order princ
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