WebELECTRIC CHARGES AND FIELDS Coulomb’s law : F kq q r = 12 = 1 4. 12. πε 2. qq r Relative permittivity or dielectric constant : ε. ie.. ,oε. r. r. K ε = 0 Electric field intensity at a point distant . r. from . q. is . E q r = 1 4πε. 0 2. Electric dipole momentm, Electric field intensity on axial line (end on position) of the electric ... WebMar 26, 2024 · 29. An electric charge produces an electric intensity of 500 N/C, at a point in air. If the air is replaced by a medium of dielectric constant 2.5, then the intensity of the electric field due to the same charge at the same point will be_____ (a) 100 N/C (b) 150 N/C (c) 200 N/C (d) 300 N/C. Answer: C. 30.
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WebFeb 24, 2024 · Multiple Choice Questions (MCQ II) (a) the electric field inside the surface and on it is zero. (b) the electric field inside the surface is necessarily uniform. (c) the number of flux lines entering the surface must be equal to the number of flux lines leaving it. (d) all charges must necessarily be outside the surface. WebJan 1, 2013 · The electric field is stronger where the field lines are closer together. 67. 16.8 Field Lines Examples of E-Field Lines Two equal but Two identical opposite charges. charges (both +). Notice that lines leave + charges and enter - charges. Also, E is strongest where field lines are most dense. hdfc bank currency converter
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WebLearn the concepts of Physics Electric Charges and Fields with Videos and Stories. Electric charge is an important physical property of matter. You might have tried to … WebAll these experiences are the result of discharge of electric charges through your body that was accumulated due to rubbing of insulating surfaces. It is also caused due to the generation of static electricity. … WebApr 3, 2024 · To determine the direction of an electric field, consider a point charge q as a source charge.This charge creates an electric field at all points in the space surrounding it. A test charge q 0 is placed at point … hdfc bank csr contact