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Find the resistance of a copper coil of ...

Find the resistance of a copper coil of total wire-length 10m and area of cross section 1.0mm^(2). What would be the resistance of a similar coil of aluminium? The resistivity of copper `=1.7xx10^(-8)(Omega)m` and that of aluminium`2.6xx10^(-8)(Omega).`

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To find the resistance of a copper coil and a similar coil of aluminum, we can use the formula for resistance: \[ R = \frac{\rho L}{A} \] where: - \( R \) is the resistance, ...
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HC VERMA ENGLISH-ELECTRIC CURRENT IN CONDUCTORS-worked out Example
  1. An electorn moves in a circle of radius 10cm with a constant speed of ...

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  2. A current 4.0 A exist in a wire of cross-sectional area 2.0 mm^(2). If...

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  3. Find the resistance of a copper coil of total wire-length 10m and area...

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  4. A parallel-plate capacitor has plates of area 10cm^(2) separated by a ...

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  5. Find the resistance of a hollow cylindrical conductor of length 1.0m a...

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  6. A battery of emf 2V and internal resistance 0.5(Omega)is connected acr...

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  7. A battery of emf 2.0 V and internal resistance 0.10 Omega is being cha...

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  8. Shown n batteries connected to form a circuit. The resistances denote ...

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  9. A copper rod of length 20cm and cross-sectional area 2mm^(2)is joined ...

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  10. A wire of resistance 10(Omega)is bent to form a complete circle.Find i...

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  11. find the currents in the different resistor shown in figure.

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  12. Find the current supplied by the battery in the circuit shown in figur...

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  13. Find the current supplied by the battery in the circuit shown in figur...

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  14. Find the effective resistance between the points A and B in figure.

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  15. Find the equivalent resistance of the network shown in figure between ...

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  16. Find the equivalent resistance between the point a and b .

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  17. Find the equivalent resistances of the nerwork shown in figure between...

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  18. In the circuit shown in figure E,F, G and H are cell of emf 2,1,3, and...

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  19. Find the equivalent resistance between the point a and b of the circui...

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  20. Find the currents going through the three resistors R(1),R(2) and R(3)...

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