Electric Fields 4

Electric potential is what type of quantity

• Vector
• Scalar
• Neither
• Can be Vector or Scalar

What are the units of Absolute Electric Potential

• Joules
• Coulombs
• Joule Coulombs
• Joules per Coulomb

Absolute potential will have a negative sign if

• The charge causing the potential is negative and the force is attractive
• The charge causing the potential is negative and the force is repulsive
• The charge causing the potential is positive and the force is attractive
• The charge causing the potential is positive and the force is repulsive

Absolute potential will have a positive sign if

• The charge causing the potential is negative and the force is attractive
• The charge causing the potential is negative and the force is repulsive
• The charge causing the potential is positive and the force is attractive
• The charge causing the potential is positive and the force is repulsive

Absolute electric potential is

• Directly proportional to the distance from the charge
• Directly proportional to the square of the distance from the charge
• Inversely proportional to the distance from the charge
• Inversely proportional to the square of the distance from the charge

Absolute electric potential is

• Directly proportional to the charge creating the electric field
• Directly proportional to the square of the charge creating the electric field
• Directly proportional to the product of the charge creating the electric field and the charge in the field
• Inversely proportional to the charge creating the electric field

The potential at a point in a field is equal to the work done per coulomb in moving a

• negatively unit charge from that point in the field to infinity
• negatively unit charge from infinity to that point in the field.
• positively unit charge from infinity to that point in the field.
• positively unit charge from that point in the field to infinity

The Charge causing the electric potential in the graph below is

• Positive
• Negative
• Unable to say

The Charge causing the electric potential in the graph below is

• Positive
• Negative
• Unable to say

The gradient of a tangent to the graph shown would give

• Average Electric Field strength in the region
• The Electric field strength at that point
• The Coulombic force an electron would experience at that point
• The work done to bring a unit positive charge from infinity to that point