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State and explain Joule's law. ,

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What are the advantages of parallel circuits over series circuits?

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Describe the characteristic features of parallel combination of resistors.

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How are resistors connected in parallel?

asked Oct 23, 2017 in Physics by sonia (36.5k points)

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Write down the characteristics of series combination of resistors.

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How are resistors connected in series?

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What is the difference between conductors and insulators?

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What is meant by specific resistance or Resistivity?

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What are the factors upon which the resistance of a conductor depends?

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Why does the resistance of a conductor increases with the rise of its temperature?

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What is a thermister.

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What are the characteristics of ohmic and non-ohmic conductors?

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How can we differentiate between Ohmic and non-ohmic conductors?

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How can we measure e.m.f. of the battery?

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

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What is voltmeter? How potential difference across a circuit can be measured?

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How can we measure current in a circuit?

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How can we differentiate between e.m.f. and potential difference?

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Is e.m.f. really a force? Explain.

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What is meant by potential difference and electromotive force (emf)?

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What is galvanometer and ammeter?

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