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MOTION-CURRENT ELECTRICITY-EXERCISE -3 SECTION -B (PREVIOUS YEAR PROBLEMS JEE MAIN)
- A wire when connected to 220 V mains supply has power dissipation P1. ...
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- The length of a given cylindrical wire is increased by 100%. Due to th...
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- A 220 volt, 1000 watt bulb is connected across a 110 volt mains supply...
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- A 3 volt battery with negligible internal resistance is connected in a...
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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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- The thermistors 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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- A moving coil galvanometer has 150 equal divisions. Its current sensit...
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- For the circuit, the galvanometer G shows zero deflection. If the batt...
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- Two sources of equal emf are connected to an external resistance R. Th...
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- An energy source will supply a constant current into the load if its i...
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- A material 'B' has twice the specific resistance of 'A'. A circular wi...
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- The Kirchhoff's first law (Sigmai = 0) and second law (SigmaiR = Sigma...
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- The current I drawn from the 5 volt source will be
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- In a Wheatstone's bridge, three resistances P,Q and R connected in the...
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- An electric bulb is rated 220 volt - 100 watt. The power consumed by i...
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- The resistance of a wire is 5 ohm at 50^@C and 6 ohm at 100^@C. The re...
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- A 5V battery with internal resistance 2Omega and a 2V battery with int...
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