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Q State Joule's law of heating?
The heat produced in a conductor is
(i) Unswervingly proportional to the square of the current for a given R
(ii) Unswervingly proportional to resistance R for a given I and
(iii) Unswervingly proportional to the time of passage of current.
That is H = I2Rt
Mechanical energy E of particle, system or object is explained as the sum of kinetic energy K and potential energy U, i.e. E = K + U. It is a scalar quantity having dimensions [ML
as flux = E.A and flux density is equal to flux/A then why A/A cannot e cancelled ?
Using an Optical Bench This applet permits users to simulate standard optic elements that is lens, mirror, dielectrics, sources, apertures and observe the ways in which light r
The heating elements of electric irons are made of (A) Copper. (B) Nichrome. (C) Constantan. (D) Aluminium. Ans: The heating components of electric irons ar
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why the blood come out of nose in the top of the mountain region?
It takes 46.0 J to raise the temperature of an 10.1 g piece of unknown substance from 13.0 o Cto 40.1 o C. What is the specific heat for the substance?
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By what factor would the I 2 R loss in transmission wires be reduced if the transmission voltage were boosted from 220 V to 22 kV? Suppose that the rate of energy delivered is
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