Question

A glass rod, when rubbed with silk cloth, acquires a charge 1.6 x 10-13 coulomb. What is the charge on the silk cloth?

Answer 1

• When a glass rod is rubbed with a silk cloth, charges appear on both. When a glass rod is rubbed with a silk cloth, charges appear on both. A similar phenomenon is observed with many other pairs of bodies.

Answer 2

Given :

A glass rod, when rubbed with silk cloth, acquires a charge 1.6 x 10-13 coulomb.

To Find :

The charge on the silk cloth .

Solution :

We know , initially net charge on the system is zero .

Charge on glass rod , $q_r=1.6\times 10^{-13}\ C$ .

Let , charge on silk cloth is $q_c$ .

By conservation of charge :

Initial charge = Final charge

$0=q_r+q_c\\\\q_c=-q_r\\\\q_c=-1.6 \times 10^{-13}\ C$

Therefore , charge on the silk cloth is $-1.6 \times 10^{-13}\ C$ .

Learn More :

Electrostatics

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