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CHETANA PUBLICATION-ELECTRIC CURRENT THROUGH CONDUCTORS-EXERCISE
- State the factors on which the resistance of a given conductor at a pa...
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- Define specific resistance (resistivity). State its unit and dimension...
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- Write the different formulae of resistivity.
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- Define conductivity of a material. State its unit and dimension.
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- Write different formulae of conductivity.
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- Calculate the resistance per metre, at room temperature, of a constant...
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- A 6m long wire has diameter 0.5 mm. Its resistance is 50 Omega. Find t...
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- What is the resistance of one of the rails of a railway track 20 km lo...
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- Explain the effect of temperature on resistance?
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- Explain the effect of temperature on resistivity.
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- Explain phenomenon of superconductivity.
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- State the applications of superconductivity.
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- A piece of platinum wire has resistance of 2.5 Omega 0^@C. If its temp...
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- A silver wire has a resistance of 4.2 Omega at 27^@C and resistance 5....
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- Define : Internal resistance
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- Define : Electromotive force
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- Define : Terminal potential differences.
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- State the advantages of cells in series.
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- State the advantages and disadvantages of cells in parallel
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- Derive the expression for Eeq and req when two cells are connected in ...
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