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With the help of circuit diagram explain...

With the help of circuit diagram explain how a metre bridge can be used to compare two unknown resistances.

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With the help of a circuit diagram, explain how a metre bridge is used to find the unknown resistance of a given wire.

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PUNJAB BOARD PREVIOUS YEAR PAPERS-Electrical Measurements -Exercise
  1. Define the term‘Resistivity’and electrical‘conductivity’and state thei...

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  2. By which material is a potentiometer wire normally made and why?

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  3. With the help of circuit diagram explain how a metre bridge can be use...

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  4. Draw diagram of aWheatstone bridge and by using Kirchhoff’s Laws deriv...

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  5. State and explain Kirchhoff’s 1st law

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  6. What is potentiometer ? Discuss its principle.

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  7. With the help of a circuit diagram, explain how a metre bridge is used...

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  8. Explain how will you compare the e.m.f’s of two cells by a potentiomet...

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  9. What is the internal resistance of a cell ? How it can be measured ?

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  10. With the help of a circuit diagram, explain how a metre bridge is used...

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  11. With the help of a circuit diagram, explain how a metre bridge is used...

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  12. What is the internal resistance of a cell ? How it can be measured ?

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  13. Draw diagram of aWheatstone bridge and by using Kirchhoff’s Laws deriv...

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  14. Explain how will you compare the e.m.f’s of two cells by a potentiomet...

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  15. Explain two methods to increase sensitivity of potentiometer

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  16. Define internal resistance of a cell and find an expression for it.

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  17. Draw a circuit diagram for the comparison of e.m.f. of two primary cel...

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  18. Draw diagram of aWheatstone bridge and by using Kirchhoff’s Laws deriv...

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  19. Draw diagram of aWheatstone bridge and by using Kirchhoff’s Laws deriv...

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  20. What is the internal resistance of a cell ? How it can be measured ?

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