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Electric Charges And Fields

Question

What is the force between two small charged spheres having charges of 2 x 10^–7 C and 3 x 10^–7C placed 30 cm apart in air?

Solution

Given,
$C harge, q_{1} = 2 \times 10^{- 7} C, C harge, q_{2} = 3 \times 10^{- 7} C r = 30 cm = 0.3 m$

where, r is the distance between two charges.

Using the formula,

$∴$ $F = \frac{1}{4 {πε}_{0}} \frac{q_{1} q_{2}}{r^{2}}$

$= \frac{9 \times 10^{9} \times 2 \times 10^{- 7} \times 3 \times 10^{- 7}}{(0.3)^{2}} = 6 \times 10^{- 3} N (Repulsive)$

Repulsive in nature since both charges are positive.

Some More Questions From Electric Charges and Fields Chapter

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?
b) Explain why two field lines never cross each other at any point?

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Electric Charges And Fields

What is the force between two small charged spheres having charges of 2 x 10^–7 C and 3 x 10^–7C placed 30 cm apart in air?

Some More Questions From Electric Charges and Fields Chapter

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?
b) Explain why two field lines never cross each other at any point?

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NCERT Sample Papers

Entrance Exams Preparation

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For Daily Free Study Material Join wiredfaculty

Electric Charges And Fields

What is the force between two small charged spheres having charges of 2 x 10–7 C and 3 x 10–7C placed 30 cm apart in air?

Some More Questions From Electric Charges and Fields Chapter

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?b) Explain why two field lines never cross each other at any point?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

What is the force between two small charged spheres having charges of 2 x 10^–7 C and 3 x 10^–7C placed 30 cm apart in air?

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?
b) Explain why two field lines never cross each other at any point?