Question

I need #3

Each carries 2 marks 1. What is the difference in between conductor and insulators? Write with necessary figures and examples of electrostatic charging by Induction? What is Charge? Problem-1: Find the charge (Q) of a system having 1000 electrons? 2. Explain the electric field produced due to a positive and negative point charges separately with necessary figures? Problem-2: Calculate the electricfield (E) at a field point of 0.2 μm from a point charge +10 pC? What is electric dipole moment? Calculate torque (t) and potential energy (U) due a dipole system of (+q) and (-q) in an electric field E and separate by a distance "d? 3. Problem-3: What is the potential energy to be stored in a dipole system of moment 2 mC in an electric field of 10 N/C at an orientation 15°? State Gauss law? Explain how to find electric flux (D) due to a point charge inside spherical and non-spherical surfaces separately with necessary figures? 4. Problem-4: What is the electric flux (D) produced through a disk of radius 100 cm which is oriented at 20° to the uniform electric field (E) of 1.0 x 104 N/Coul. 5. Define electric potential IV, potential energy (VJ, and potential gradient with necessary formulas and figures? Write each S.I. units? Problem-5: Find the potential dfference (SV), when an electron moves over 50 μm in between two points in a linear accelerator with a uniform electric field of 1.0 x 10a N/C?

Answer 1

after removing the ground wire, we get negative charge on the pith ball like this,