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A carbon steel plate (thermal conductivity = 45 W/moC) (600 x 900 x 25) mm2 is maintained at 310oC. Air at 15oC bellows over the hot plate.If convection heat transfer co-efficient is 22 W/moC and 250 W is lost from the plate surface by radiation, Determine the inside plate temperature.
Explain the term 'resolving power' of an astronomical telescope. How does it get affected on 1. Enhancing the aperture of the objective lens? 2. Enhancing the wavelength of t
The fabrication of discrete and integrated circuit solid state devices requires semiconductor crystals with impurity concentrations as low as possible and crystals that contain ver
Describe NOR and NAND gates. Provide their truth tables. Discuss the nature of a p-n junction. How does a potential barrier develop at the junction.
(a) Convert the network to the left of terminals AB in Figure 13.60 to an equivalent Thévenin circuit by initially converting to a Norton equivalent network. (b) Determine the
Determine current flowing through 5 ? resistor in the circuit demonstrated in Figure. Use Source transformation technique. Ans: Determination of current flowing thr
Define the formula of Wien law. WIEN'S LAW: λ m T = constant Here: λ m = Peak Wavelength (m) T = Surface Temperature (K) Constant = 2.898 x 10 -3 mK It
mole; mol The basic SI unit of substance, explained as the amount of substance which contains as many elementary units (molecules, atoms ions, etc.) as there are atoms in 0.01
Radiation and Radioactivity Investigator of radioactivity discovered that certain natural elements, primarily the very heavy ones, have unstable nuclei that disintegrate to emi
Illustrates some way to by which ultrasonic waves propagated? Detection of Ultrasonic Waves: Ultrasonic waves propagated by a medium can be detected within a number of ways.
Are there different types of optical ports? Optical ports can be divided into two types: pressure and potting. Potting optical ports are small more than a hollow tube into that
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