alleryStart learning →Two charges of 2 microcoulomb each are 30 cm apart in air. What is the force between them?
A0.04 N
B0.4 N
C4 N
D0.12 N
Answer & Solution
Correct answer: B. 0.4 N
F = 9e9 x (2e-6)^2 / (0.3)^2 = 3.6e-2/0.09 = 0.4 N.
Keep practising Electrostatics
Browse all Electrostatics questions for MHT-CET, or explore more Physics topics.
Related questions
About how many electrons together carry a charge of one coulomb?How many electrons are present in one molecule of water?An electroscope charged by induction gives the gold leafA precaution against static charge at home is to keep the surroundingsPhotocopiers use the property that friction between an insulator and another objectCharge spread through a solid plastic sphere is described bySurface charge density is measured inLinear charge density is defined as charge per unit