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MODERN PUBLICATION-ELECTRIC CURRENT. RESISTANCE AND E.M.F-EXERCISE
- Define resistivity and state its SI unit. State and explain how to res...
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- Write the mathematical relation for the resistivity of a material in t...
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- Explain with the help of a graph, the variation of conductivity with t...
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- Explain the variation of conductivity of a metallic conductor with tem...
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- Express electrical conductivity in terms of charge, mass, number densi...
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- Define electric power and electric energy. Give their units.
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- Prove that electric energy (W) consumed in a conductor is given by the...
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- Obtain the formula for the power loss in a conductor of resistance R a...
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- Explain colour code for carbon resistors giving examples.
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- What is the need of combining different resistors? What is the resulta...
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- Derive expression for the total resistance of a circuit in which a few...
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- What do you mean by internal resiatnce, e.m.f. (electromotive force) a...
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- What is internal resistance of a cell? Derive an expression for it.
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- What do you mean by internal resiatnce, e.m.f. (electromotive force) a...
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- What is internal resistance of a cell? Derive an expression for it.
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- What is internal resistance of a cell? Derive an expression for it.
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- What is the difference between e.m.f. and potential diffrence?
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- When a battery of e.m.f E and internal resistance r is connected to a ...
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- Derive the expression for internal resistance of a cell.
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- A cell of e.m.f. E an internal resistance r is connected across an ext...
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