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Answer the following questions: A low vo...

Answer the following questions: A low voltage supply from which one needs high currents must have very low internal resistance. Why?

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PSEB-CURRENT ELECTRICITY-EXERCISE
  1. Answer the following questions: A steady current flows in a metallic c...

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  2. Answer the following questions: Is Ohm’s law universally applicable fo...

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  3. Answer the following questions: A low voltage supply from which one ne...

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  4. Answer the following questions: A high tension (HT) supply of, say, 6 ...

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  5. Choose the correct alternative: Alloys of metals usually have (greater...

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  6. Choose the correct alternative: Alloys usually have much (lower//highe...

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  7. Choose the correct alternative: The resistivity of the alloy manganin ...

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  8. Choose the correct alternative: The resistivity of a typical insulator...

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  9. Given n resistors each of resistance R. how will you combine them to g...

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  10. Given n resistors each of resistance R. how will you combine them to g...

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  11. Given the resistances of 1Omega ,2Omega ,3Omega , how will be combine ...

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  12. Determine the equivalent resistance of networks shown in Fig. 3.31. :

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  13. Determine the current drawn from a 12V supply with internal resistance...

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  14. Figure shows a potentiometer with a cell of 2.0 V and internal resist...

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  15. Figure shows a potentiometer with a cell of 2.0 V and internal resist...

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  16. Figure 3.33 shows a potentiometer with a cell of 2.0 V and internal re...

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  17. Figure 3.33 shows a potentiometer with a cell of 2.0 V and internal re...

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  18. Figure 3.33 shows a potentiometer with a cell of 2.0 V and internal re...

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  19. Figure 3.33 shows a potentiometer with a cell of 2.0 V and internal re...

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  20. Figure 3.34 shows a potentiometer circuit for comparison of two resist...

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