Two insulated charged metallic spheres P and Q have their centres separated by a distance of 60 cm. The radii of P and Q are negligible compared to th

Question

Two insulated charged metallic spheres P and Q have their centres separated by a distance of 60 cm. The radii of P and Q are negligible compared to th

Two insulated charged metallic spheres P and Q have their centres separated by a distance of 60 cm. The radii of P and Q are negligible compared to the distance of separation. The mutual force of electrostatic repulsion if the charge on each is `3.2xx10^(-7)C` is
A. `5.2xx10^(-4)N`
B. `2.5xx10^(-3)N`
C. `1.5xx10^(-3)N`
D. `3.5xx10^(-4)N`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
Here, `q_(1)=q_(2)=3.2xx10^(-7)C`, r = 60cm = 0.6m Electrostatic force,
`F=1/(4piepsilon_(0))(q_(1)q_(2))/(r^(2))=(9xx10^(9)(3.2xx10^(-7))^(2))/((0.6)^(2))=2.56xx10^(-3)N`

4 views Answered 2023-02-05 15:29