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        A cylindrical solid of length 1m and r 1m is connected across a source of of end 10 V and negligible internal resistance shown in pic.the resistivity is given by r=b-c.Find electric field at point P at a distance 10 cm from left end.(Figure is  in attached image)
4 months ago

Khimraj
3008 Points
							Resistance of cylinder = $\int_{0}^{1}\rho dx/A = \int_{0}^{1}bx dx/\pi = b/2\pi$E = dV/dx = idR/dx = id/dx(bx2/A) = ib2x/$\pi$= 40xat x =10 cm = 0.1m= 4 V/mHope it clears.........................

4 months ago
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• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions