1. The Superposition Principle states that net electric field produced at any po

Question

1. The Superposition Principle states that net electric field produced at any point by a system of charges is equal to the vector sum of all individual fields produced by each charge at this point.

2. The magnitude of electric field can be defined as which of the following equation(s)

E=F/q

E=(1/(4*pi*epsilon_o))*(Q/r^2)

Both A and B

None of the above

#2 hint: epsilon_o is the vacuum permeability and k=(1/(4*pi*epsilon_o))

3. Electric field lines are typically drawn pointing ______ positive charges.

Away from

Towards

4. Electric field lines are typically drawn pointing ______ negative charges.

Away from

Towards

5. Given two positive charges point charges are 0.3cm apart. The electric field midway between the two positive point charges will be equal to 0.

Explanation / Answer

1)

Here ,as the electric field is a vector quantity , we can use vector addition to find the resultant of all the electric field vectors acting on the point.

which is same as using the superposition.

Hence , the statement is TRUE

2)

Electcic field is defined as the force acting on a unit positive charge at a point .

hence , E = F/q

the correct options is E = F/q

3)

as the electric field is away from the positive charge

as the field lines point in the direction of electric field .

hence ,

electric field line are typically pointing away from the positive charge

4)

as the electric field is towards from the negative charge

as the field lines point in the direction of electric field .

hence ,

electric field line are typically pointing towards from the negative charge

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