Potential Difference

Q. 1 Joule per coulomb is the same as _____.

1. $1\Omega$
2. $1W$
3. $1V$
4. $1A$

Q. Work done in moving a unit positive charge from one point to other in an electric circuit is called potential difference.

1. True
2. False

Q.

One Volt is equal to

1. $1$ Joule

2. $1$ Newton/Coulomb

3. $1$ Joule/Coulomb

4. $1$ Coulomb/Newton

Q.

Gravitational potential energy of an object depends on its ______ and ______

Q.

What is the potential difference? Explain. and give its unit with the definition.

Q. Gravitational potential energy is directly proportional to .

1. height
2. temperature
3. speed

Q.

1. Why is potential difference useful?

Q.

What is potential difference? Define its SI unit. Which instrument is used to measure it and how it is used?

Q. Find the electric current that flows through a conductor if a charge of 0.8 C flows through it in 4 seconds.

1. $0.2A$
2. $0.5A$
3. $0.8A$
4. $0.25A$

Q.

Which of the following is the SI unit of electric current?

1. $\mathrm{Ohm}$

2. $\mathrm{Ampere}$

3. $\mathrm{Volt}$

4. $\mathrm{Faraday}$

Q.

Potential difference is measured using a _____________

Q. The work done in moving a unit positive charge from one end of a conductor to its other end is $10J$. Voltage across the ends of the conductor is .

1. $10V$
2. $1V$
3. $20V$

Q.

What do you mean by electric potential difference?

Q.

The work done (in Joule) in carrying a charge of 100 coulomb between two points having a potential difference of 10 volt is:

1. 0.1
2. 10
3. 100
4. 1000

Q. A brick stone of mass $5\text{kg}$ is at a height above the ground. If the potential energy of the stone is $100\text{J}$. Find the height of the stone with respect to the ground.
(Take $g=10{\text{m s}}^{-2}$)

1. $2\text{m}$
2. $4\text{m}$
3. $0.2\text{m}$
4. $0.4\text{m}$

Q.

If the amount of work done to transfer 30 coulombs of charge is 300 J, then the potential difference between two ends of battery is________.

1. 900 V

2. 100 V

3. 0 V

4. 10 V

Q.

The SI unit of potential difference is ____________ .

Q. Given are three different stages of an ancient and deadly two-body system: the bow and the arrow. If m represents the mass of the 'bow-arrow system', how can you compare the different cases?

1. >
2. 
3. < <
4. <

Q. is the potential difference between two points, when 3 J of work is done in moving 2.3 C of charge between them.

1. $2.506\text{V}$
2. $1.304\text{V}$
3. $3.214\text{V}$

Q. If the amount of work done to transfer 60 coulombs of charge is 600 J, then the potential difference between two ends of battery is________.

1. 900 V
2. 100 V
3. 0 V
4. 10 V

Q. Choose the INCORRECT relation among the following:

1. $\text{Ampere}=\frac{\text{Coulomb}}{\text{Second}}$
2. $\text{Volt}=\frac{\text{Coulomb}}{\text{Joule}}$
3. $\text{Ohm}=\frac{\text{Volt}}{\text{Ampere}}$
4. $1\text{Coulomb}=6.25\times {10}^{18}$$\text{electron charge}$

Q. If the amount of work done to transfer 60 coulombs of charge is 600 J, then the potential difference between two ends of battery is________.

1. 900 V
2. 100 V
3. 0 V
4. 10 V

Q. The electric potential at two ends of a conductor is 4V and 2V respectively. 10J of work needs to be done to ove certain amount of charge from end at higher potential to end at lower potential. Find the amount of charge flowing between the two ends.

1. 2C
2. 3C
3. 20C
4. 5coulomb

Q. what is electric potential and electric potential energy? what is difference between both?

Q.

If the amount of work done to transfer 30 coulombs of charge is 300 J, then the potential difference between two ends of battery is________.

1. 900 V

2. 100 V

3. 0 V

4. 10 V

Q. A battery is:

1. a single cell
2. a combination of cells in which positive (+) terminal of one cell is connected to negative (-) terminal of another cell
3. a combination of cells in which positive (+) terminal of one cell is connected to positive (+) terminal of another cell
4. a combination of cells in which negative (-) terminal of one cell is connected to negative (-) terminal of another cell
   

Q.

How many electrons constitute a charge of 1 coulomb?

1. 7.25 x 10¹⁸

2. 6.25 x 10¹⁸

3. 7.25 x 10²⁸

4. 6.25 x 10²⁸