Question

2. Calculate the charge on a body if one million electrons are removed
from it. (one million = 10 lakh)
Ans.+ 16 x 10-13 coulomb​

Answer 1

hey mate....

Charge on 1 electron e^(-) = 1.6 × 10^(-19)C.

For 1 million electrons, the total charge Q = (1.6 × 10^(-19))×1 000 000 = 1.6 × 10^(-13) C.

Charge remaining on object Q = Q - (1.6 × 10^(-13)) C.

thankyou

Answer 2

The charge that developed on the body is $+1.6X10^{-13} C$.

Given,

Number of electrons that were removed=1 million.

$1 milliom=10^{6} .$

To find,

the charge on the body.

Solution:

• Charge is an intrinsic property of matter which gives rise to electric forces between various objects.
• Its unit is coulomb(C).
• Like charges repel each other and unlike charges attract each other.
• When electrons are taken out from an object, it represents that negative charge is removed, thus suggesting that it develops positive charge then.
• When electrons are removed from an object, the charge that exist on it is given by:
• Q=+ne.
• where, Q-charge, n-number of electrons and e-fundamental charge.
• $e=1.6X10^{-19} C$.

The charge on the body will be:

$Q=+ne\\Q=+10^{6} X1.6X10^{-19} C\\Q=+1.6X10^{-13} C.$

Hence, the charge is $+1.6X10^{-13} C$.

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