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Draw a schematic diagram of a circuit co...

Draw a schematic diagram of a circuit consisting of a battery of three cells of 2V each, a 5`Omega` resistor, an `8Omega` resistor and a `12Omega` resistor, and a plug key, all connected in series.

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Draw a schematic diagram of a circuit consisting of a battery of three cells of 2 V each, a 5Omega,8Omegaand12Omega and a plug key, all connected in series.

Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 2Omega in series with a combination of two resistors [ 4Omega each] in parallel and a voltmeter across the parallel combination. Will the potential difference across the 2Omega resistor be the same as that across the parallel combination of 4Omega resistors? Give reason.

Calculate the resultant resistance of 3 resistors 3 Omega , 4 Omega and 12 Omega connected in parallel.

A 4 V battery of internal resistance 1 Omega sends a current through a 3 Omega resistor. The terminal p.d. is

A network of resistors is connected to a 12V battery as shown in the figure. Obtain current in 12Omega and 6Omega resistors.

OSWAAL PUBLICATION-ELECTRICITY-TOPIC-2 ( Long Answer Type Questions )
  1. 100 J of heat is produced each second in a 4 Omega resistor. Find the ...

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  2. A wire of resistivity p is pulled to double its length. What will be i...

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  3. Draw a schematic diagram of a circuit consisting of a battery of three...

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  4. Two wires of equal length, one of copper and the other of manganin hav...

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  5. Derive an expression for the equivalent resistance of three resistors ...

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  6. Fuse of 3A, 5A and 10A are available. Calculate and select the fuse fo...

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  7. What is meant by the statement that the resistance of a wire is 1 Omeg...

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  8. Two identical resistors each of resistance 12 Omega are connected (i) ...

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  9. How is a voltmeter connected in the circuit to measure the potential d...

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  10. Explain the term : Heating effect of electric current.

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  11. Derive an expression for the heat produced by electric current and sta...

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  12. Why are electric bulbs filled with chemically inactive nitrogen or arg...

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  13. State Ohm's law. Give mathematical relation between potentW difference...

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  14. When a 12 V battery is connected across an unknown resistor there is a...

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  15. Two wires X and Y are of equal length and have equal resistances. If t...

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  16. Study the following current time graphs from two different sources. ...

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  17. Calculate the resistance of the wire using the graph.

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  18. How many 176Omega resistors (in parallel) are required to carry 5A on ...

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  19. Define electric power. Derive relation between power, potential differ...

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  20. Draw a labelled circuit diagram to study the relationship between the ...

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