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SUNIL BATRA (41 YEARS IITJEE PHYSICS)-CURRENT ELECTRICITY-JEE Main And Advanced
- A 3 volt battery with negligible internal resistance is connected in a...
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- A 220 volt, 1000 watt bulb is connected across a 110 volt mains supply...
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- The total current supplied to the circuit by the battery is
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- The resistance of the series combination of two resistances is S. When...
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- An electric current is passed through a circuit containing two wires o...
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- In a meter bridge experiment null point is obtained at 20 cm. from one...
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- The termistors are usually made of
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- Time taken by a 836 W heater to heat one litre of water from 10^@C to ...
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- The thermo emf of thermocouple varies with the temperature theta of th...
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- The electrochemical equivalent of a metal is 3.35109^(-7) kg per Coulo...
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- Two thin, long, parallel wires, separated by a distance 'd' carry a cu...
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- A heater coil is cut into two equal parts and only one part is now use...
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- In the circuit, the galvanometer G shows zero deflection. If the batte...
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- A moving coil galvanometer has 150 equal divisions. Its current sensit...
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- Two sources of equal emf are connected to an external resistance R. Th...
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- Two voltameters, one of copper and another of silver, are joined in pa...
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- In a potentiometer experiment the balancing with a cell is at length 2...
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- The resistance of hot tungsten filament is about 10 times the cold res...
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- An energy source will supply a constant current into the load if its i...
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- The Kirchhoff's first law (Sigmai = 0) and second law (SigmaiR = Sigma...
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