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Define Two-Dipole Interaction?
Two classical dipoles with dipole moments μ1 and μ2 are separated by a distance R so that only the orientation of the magnetic moments is free. They are inside thermal equilibrium at a temperature T. Compute the mean force between the dipoles for the high-temperature limit μ1μ2/TR3<<1.Hint The potential energy of interaction of two dipoles is
MANUFACTURING: Pure carbon is deposited on ceramic substrate by thermal decomposition of hydrocarbon at 1000 0 C. The sheet resistance of film is controlled by contro
Calculate the heat required to melt 316.7kg of potassium metal at 336 K. The enthalpy of fusion of potassium is 2.35 kJ mol -1 .
The half-life of an isotope of an element is 5 days. The mass of a 10 gram sample of this isotope remaining after 20 days is: a) 0.312 grams b) 0.625 grams c) 1.25 g
For a blackbody, the frequency at which maximum energy is emitted is 3 x 10 13 Hz: A. Give a wavenumber for the wavelength of the infrared emission? B. What is the tempera
Determine the weight of a body. Principle: When a spring is fixed at one end and a force is applied to the other end the stretching of the spring is proportional to the applie
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
A hydrogen atom is in the ground state. It absorbs energy and makes a transition to the n = 3excited state. The atom returns to the ground state by emitting two photons. What are
Can you explain thermistor? Write short notes on back emf and internal resistance of a cell.
When two particles tend to each other, their motion alters or their momentum modify because of their mutual interactions. This phenomenon is called as collision. During collision
Explain Shape of the earth? Shape and size of the earth. The shape of the earth is regarded as a sphere, but it is mainly an oblate spheroid like as egg being slightly flatter
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