Unit of Charge

Q. A conductor has $14.4\times {10}^{-19}$ coulombs positive charge. The conductor has
(Charge on electron $1.6\times {10}^{-19}$)

1. 9 electrons in excess
2. 27 electrons in short
3. 27 electrons in excess
4. 9 electrons in short

Q. Charge on $\alpha$- particle is

1. $4.8\times {10}^{-19}C$
   
2. $1.6\times {10}^{-19}C$
   
3. $3.2\times {10}^{-19}C$
   
4. $6.4\times {10}^{-19}C$

Q. When ${10}^{19}$ electrons are removed from a neutral metal plate, the electric charge on it is

1. -16 C
2. +16 C
3. 10' C
4. 10' C

Q. The variation of electric field between two charges $q_1$ and $q_2$ along the line joining the charges is plotted against the distance $r$ from $q_1$ (taking the direction from $q_1$ to $q_2$ as positive) as shown in the figure. Find the correct statement among the following is

1. $q_1$ and $q_2$ are positive and $|q_1|<|q_2|$
2. $q_1$ and $q_2$ are negative and $|q_1|<|q_2|$
3. $q_1$ and $q_2$ are positive and $|q_1|>|q_2|$
4. $q_1$ is positive and $q_2$ is negative $|q_1|<|q_2|$

Q. The number of electrons in 1.6 C charge will be

1. ${10}^{19}$
   
2. ${10}^{20}$
   
3. $1.1\times {10}^{19}$
   
4. $1.1\times {10}^2$

Q.

What is the Unit of Charge?

1. Coulomb

2. Ohm

3. Ampere

4. Volt

Q. When ${10}^{14}$ electrons are removed from a neutral metal sphere, the charge on the sphere becomes

1. $16\mu C$
2. $-16\mu C$
3. $32\mu C$
4. $-32\mu C$