Three charges \( 1 \mathrm{C},-1 \mathrm{C} \), and \( 2 \mathrm{C} \) are kept on \( X \) axis \( -5 \mathrm{~cm}, x=0 \mathrm{~cm} \) amd \( x=10 \mathrm{~cm} \) respectively find net force one each of them
Asked by marshelojigas
| 28th Jun, 2022,
06:46: AM
Expert Answer:
I assume the question is as given below
" Three charges 1 C, -1 C , and 2 C are kept on X axis at x = -5 cm,
x=0 cm and x=10 cm respectively find net force one each of them "
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Force F between two charges q1 and q2 that are separated by a distance d is given as
where K = 1/(4πεo ) = 9 × 109 N m2 C-2 is Coulombs constant and εo is permittivity of free space.
In this given charge configuration, there are three types of forces .
F1 is attractive force between charges 1 C and -1 C ; 
F2 is attractive force between charges -1 C and 2 C ; 
F3 is repulsive force between charges 1 C and 2 C ; 
Net force on 1 C charge = F1 - F3 = ( 3.600 -0.800) × 1012 N = 2.800 × 1012 N
Net force on -1 C charge = F1 - F2 = ( 3.600 -1.800) × 1012 N = 1.800 × 1012 N
Net force on 2 C charge = F2 - F3 = ( 1.800 -0.800) × 1012 N = 1.000 × 1012 N
Answered by Thiyagarajan K
| 28th Jun, 2022,
08:27: AM
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