uLaION 8t the point)? What is the electric potential on Ihe X-axis at 20 cm mark

Question

uLaION 8t the point)? What is the electric potential on Ihe X-axis at 20 cm mark (location of the point)? 8. The electric potential at points in a plane described by V- 2x+ 4y'. What is the electric field at a 9. 10. A parallel plate capacitor has a capacitance of 100 pF. Each of its plates has an area of 0.1 m2 point given by (4m, 5m). Find the equivalent capacitance of the circuit shown in Fig. 5. C1-1 F, C2-2 C3-3pf, CA What is the plate separation? If the region between the plates is filled with mica having dielectric constant of K-2.8, what is the capacitance? The capacitor plates are given a charge 20 HC. What is the energy density before and after the insertion of the dielectric? A 3 lcem o em 3 ' 10cm 4- 3 to em C3 (00) Fig.4 CL

Explanation / Answer

8] Electric field E =gradient of V

= -dV/dx i - dV/dy j

= 4x i + 8y j

= 16 i + 40 j V/m. answer

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