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R G PUBLICATION-CURRENT ELECTRICITY-EXERCISE
- In the meter bridge shown in the above figure, the null point is found...
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- As shown in the figure above, a resistance of R = 5Omega draws curren...
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- What is the SI unit of current?
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- Who discovered the basic law regading the flow of current?
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- What is resistance of a conductor?
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- Define the resistance of a conductor. What is its unit?
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- What is the resistivity range of metals.
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- Give the relation between emf and P.D.
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- What is electromotive force(emf)?
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- Give the relation between emf and P.D.
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- Why a meter bridge is used?
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- Give the unit of electromotive force.
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- What is the unit of current density?
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- In which principle Kirchhoff's junction rule is based on?
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- Define conductivity.
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- What are semiconductors? How electrical conductivity of semiconductors...
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- What are the factors on which resistance of a conductor depends?
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- What is super conductivity.
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- State the principle of working of a potentiometer.
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- What is the principle of a meter bridge.
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