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a) Thomson's heat is proportional to the current passing by the conductor.
b) This effect is produced when parts of similar conductor are kept at dissimilar temperature.
c) It is a reversible effect.
d) This effect depends upon nature of conductor and temperature difference of dissimilar parts of the conductor.
e) It is heating as well as cooling effect.
Working: When plate potential (V p ) is positive, plate current ( I p ) flows in the circuit (because some emitted electrons reach to plate). If + V p enhances I p also increas
Describe the magnetic moment of a bar magnet. What is its direction? Can you find two magnetic field lines intersecting? Why?
left-hand rule: It is the opposite-chirality version of the right-hand rule.
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In Rutherford's experiment including the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered
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A pendulum which is suspended from the ceiling of a railroad car is observed to hang at an angle of 10 degrees to the right of vertical. Which of the following answers could expla
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