Question

Two small spheres, each of mass m and positive charge q, hang from light threads of lengths l.

Answer 1

Physics

1 Answer

A08

Jun 2, 2018

(a) [Math Processing Error], tension in the thread; [Math Processing Error], weight of sphere and 

[Math Processing Error], Coulomb's force of repulsion.

my comp

(b) When the system is in equilibrium, magnitudes of vertical forces and horizontal forces balance each other respectively.

Vertical:

[Math Processing Error] ......(1)

Horizontal:

[Math Processing Error]

[Math Processing Error] .....(2)

Dividing (2) with (1) we get

[Math Processing Error]

[Math Processing Error] ......(3)

Exercise: Write down answers to (i) to (iii)

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