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One million electrons are added to glass...

One million electrons are added to glass rod. The total charge on the rod is

A

`10^(-13)C`

B

`-1.6xx10^(-13)C`

C

`+1.6xx10^(-12)C`

D

`10^(-12)C`

Text Solution

Verified by Experts

The correct Answer is:
B
`Q=+-` ne n is integer
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When a glass rod is rubbed with resin, a mass of 27.3 xx 10^(-14) g is transferred from glass rod to resin. Find the amount charge acquired by the glass rod. What is the nature of the charge? (Charge of electron = 1.6 xx 10^(-19) C, Mass of electron = 9.1 xx 10^(-31) kg)

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Knowledge Check

  • Write the following steps in sequence to show that the like charges repel each other. (A) Rubbing both the glass rods with cotton cloth develops the same type of charge on them. (B) Take two glass rods and charge both the rods by friction. (C) Suspend both the glass rods with the help of two silk threads and bring them nearer. (D) The glass rods repel each other showing that like charges repel each other.

    A
    ABCD
    B
    DCBA
    C
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    D
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  • the linear charge density of a thin metallic rod varies with the distance x from the end as lambda=lambda_(0)x^(2)(0 le x lel) The total charge on the rod is

    A
    `(lambda_(0)l^(3))/(3)`
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    `(lambda_(0)l^(3))/(4)`
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  • Write the following steps in sequence that explains the charging of a body by conduction. (A) Bring this positively charged glass rod in contact with a (neutral) uncharged metallic body, because of this the metallic body also becomes positively charged. (B) Take a glass rod and rub it with silk cloth. (C) Some electrons move from the glass rod to the silk cloth because of this the glass rod becomes positively charged.

    A
    ABC
    B
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