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FULL MARKS-CURRENT ELECTRICITY-TEXTBOOK EVALUATION (Short Answer Questions)
- Why current is a scalar?
02:36
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- Distinguish between drift velocity and mobility.
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- State macroscopic form of Ohm's law.
02:41
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- State macroscopic form of Ohm's law.
02:41
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- What are ohmic and non ohmic devices ?
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- Define electrical resistivity.
03:31
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- Define temperature coefficient or resistance.
01:43
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- What is superconductivity ?
03:19
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- What is electric power and electric energy ?
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- Define current density.
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- Derive the expression for power P=Vi in electrical circuit.
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- Write down the various forms of expression for power in electrical cir...
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- State Kirchhoff's current rule.
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- Sate Kirchhoff's voltage rule.
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- State the principle of potentiometer.
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- What do you mean by internal resistance of a cell ?
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- State Joule's law of heating.
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- What is Seeback effect ?
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- What is thomson effect ?
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- What is Peltier effect ?
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