12th Class Physics MCQS Electrostatics Online Test 5

in-case-of-photocopier-2-c-a-special-dry-2-c-black-powder-called-toner-is-given-by-3-a_-_negative-charge,in-millikan-e-2-80-99-s-oil-drop-experiment-a-charged-particle-of-mass-e-2-80-98-m-e-2-80-99-is-in-equilibrium-in-an-applied-electric-field-e-3-f-if-the-direction-of-electric-field-is-reversed-then-accerelaration-of-the-particle-will-be-3-a_-_2-g,intensity-of-field-inside-a-hollow-charged-sphere-will-be-3-a_-_zero,nc-1-is-the-si-unit-of-3-a_-_electric-intensity,numerical-value-of-permittivity-of-free-space-is-3-a_-_8-85-c-3-9710-3-csup-3-e-12-3-c-2-fsup-3-en-3-csup-3-e-1-3-c-2-fsup-3-em-3-csup-3-e-2-3-c-2-fsup-3-ec-3-csup-3-e-2-3-c-2-fsup-3-e,numerical-value-of-permittivity-of-free-space-is_-_8-85-x-10-3-csup-3-e-12-3-c-2-fsup-3-e-n-3-csup-3-e-1-3-c-2-fsup-3-em-3-csup-3-e-2-3-c-2-fsup-3-ec-3-csup-3-e-2-3-c-2-fsup-3-e,one-electron-volt-is-equal-to-3-a_-_1-6-c-3-9710-3-csup-3-e-19-3-c-2-fsup-3-e-joule,one-joule-is-equal-to-3-a_-_1-6-x-10-3-csup-3-e-18-3-c-2-fsup-3-e-ev,one-joule-is-equal-to-3-a_-_6-25-c-3-9710-3-csup-3-e-18-3-c-2-fsup-3-eev,one-of-the-application-of-electrostatic-induction-is_-_photo-copier,one-of-the-applications-of-electrostatic-induction-is-3-a_-_x-rays,photo-copier-and-inkjet-printer-are-the-applications-of-3-a_-_electrostatic,photo-copier-and-inkjet-printer-are-the-applications-of_-_electrostatic,presence-of-dielectric-always-3-a_-_decrease-the-electrostatic-force,presence-of-dielectric-always-3-a_-_increase-the-electrostatic-force,presence-of-dielectric-between-two-charges-always-3-a_-_enhances-the-electric-force,relative-permittivity-for-air-is-3-a_-_1-0006,relative-permittivity-for-air-is_-_1-0006,s-i-unit-of-strength-of-electric-field-is-3-a_-_n-2-fc,selenium-is-3-a_-_insulator-in-dark,the-si-unit-of-relative-permittivity-is-3-a_-_no,two-charges-1-c-2-b-5-c-and-5-c-2-b-5-c-separate-by-20-cm-2-c-the-ratio-of-electoral-forces-acting-on-them-will-be-3-a_-_1-3-a-01,which-one-of-the-following-can-be-taken-as-measure-of-electric-field-intensity_-_3-cimg-src-3-d-22-2-fimages-2-fmcqs-2-f-12th-2-fphy-2-fch-01-021-02-png-22-3-e