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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.
The dielectric strength of transformer oil should be (A) 100 V. (B) 5 KV. (C) 30 KV. (D) 132 KV. Ans: The dielectric strength of transformer oil mu
Cathode rays have: (1)Mass only (2)Charge only (3)No mass and charge (4)Mass and charge both Ans:(4)Mass and charge both
DRAW A GRAPH OF DISTANCE VERSUS TAN
Two stable isotopes of lithium and have respective abundances of 7.5% and 92.5%. These isotopes have masses 6.01512 u and 7.01600 u, respectively. Find the atomic mass of lithium.
a sinusodal transverse wave is travelling on a string any point on the string
Do objects of different weights fall with same acceleration on the earth? Yes , objects fall with the similar acceleration regardless of their weights at the surface of earth,
An electric motor with a load delivers 5.2 hp to its shaft (1 hp = 746 W). Under these conditions, it operates at 82.8 percent efficiency. a. How much current does the motor d
What is the size of an atom?What is the size of an atom?What is the size of an atom?What is the size of an atom?What is the size of an atom?What is the size of an atom?
Will light go any length along the fiber? Each conductor has losses, and in the case of fiber optics, all these are sizeable. Light losses into the industry average 2 to 5 perc
Q. A person with a normal near point (25cm) using a compound microscope with objective of focal length 8.0mmandan eye piece of focal length 2.5cm can bring an object placed at 9.0m
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