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Calculate the heat-removal factor and the duct flow factor for a collector having an overall heat loss coefficient of 6 W/ (m2.K) constructed of aluminum fins and tubes. Tube to tube center distance is 15 cm; fin and tube thicknesses are 0.05 cm; tube diameter is 1.2 cm; fluid heat transfer coefficient is 1200 W/ (m2.K); and the cover transmittance to solar radiation is 0.9 and is independent of direction. The solar absorbance of the absorber plate is 0.9; the
Collector is 1 m wide and 3 m long; the water flow rate is 0.02 kg/sec. The inlet water temperature is 330 K.
Describe the principle construction and working of a scintillation counter. With suitable diagram explain various components of a scintillation counting system. Principle Sci
State and illustrate Lenz's law with examples Derive a mathematical expression for a force between two parallel conductors carrying a current.
Inductors are used extensively in analogue circuits and signal processing. Inductor in conjunction with capacitors and other components form tuned circuits which can emphasize or f
He customized Newton's formula suppose that propagation of sound in gaseous medium is adiabatic process. For adiabatic method
Q. What are the uses of Raman spectrum? (i) It is widely utilized in almost all branches of science. (ii) Raman Spectra of dissimilar substances enable to classify them acc
FORCE: "Force is that agency which causes a body to alter its state of motion or rest". It is denoted by F ?
Displacement related with a wave is given by y (x, t) = 0.1 cos(0.2x-2t). Where x y are in cm and ‘t' in second. Determine the wavelength, amplitude, frequency and velocity.
Which colour has got the minimum angle of deviation?
Influence the value of g Shape of the earth : (a) At poles : Generally 'g' value is inversely proportional to the radius of the earth ' r' . Due to flattening of the e
Determine the N-type drain and gate When gate is made positive with respect to source and substrate, negative (i.e. minority) charge carriers within the substrate are attracted
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