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a) Heat produced or absorbed at a junction is proportional to the current by the junction.
b) This effect is produced when current is passed by junction of suitable materials.
c) It is reversible effect.
d) Heat exchange depends upon nature of conductors and temperature of the junctions.
e) It can be heating as well as cooling effect.
WHY Surface tension increases when an highly soluble SUBSTANCE is dissolved in water WHILE IT DECREASES WHEN an weakly soluble substance is dissolved in water
an object of mass 5.0 Kilograms initially travelling at 12.0m/s horizontally enters a region where there is a coefficient of kinetic friction of 0.27. a) use the concepts of wor
As an electron passes close to the positive nucleus of atom, the electron is moved from its path as given in diagram. This results in deceleration of the electron. The loss in powe
according to the first law of thermodynamics , obtain the relationship between specific hears of gases
The current transformer has a single turn on the primary winding and a secondary winding of 60 turns. The secondary winding is connected to an ammeter with a resistance of 0.15
1. A 12-bit analog-to-digital converter (ADC) works over the range of -5 volts to + 5 volts. (a) What is the voltage resolution of this converter? (b) Assuming -5 V is rep
Why the velocity of light is limiting velocity of anything.
The total number of neutrons in dipositive zinc ions with mass number 70 is: (1) 34 (2) 40 (3) 36 (4) 38 Ans:40
When the electron is known energy from external source, it goes to higher energy level. This process is called as excitation. The minimum energy needed to excite an atom is know
What are the consequences of dispersion? The main familiar result of dispersion is the splitting up of the composite white light within its constituent colours as into a rainbo
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