Electric Potential Energy and Fields

The video tutorial explains the concept of electric potential energy, its calculation, and its relationship with electric fields and potential difference. It covers the movement of charges between parallel plates, the work done, and the change in kinetic energy. The tutorial also highlights the similarities between electric and gravitational potential energy, providing practical examples and calculations to reinforce understanding.

What happens to a positive charge placed between two parallel plates with opposite charges?

• It moves towards the negatively charged plate.

• It oscillates between the plates.

• It remains stationary.

• It moves towards the positively charged plate.

Which formula represents the electric potential energy between two points?

• U = mgh

• U = qV

• U = 1/2 mv^2

• U = -Eqy

How does the electric potential energy change as a charge moves from point A to point B?

• It becomes zero.

• It increases.

• It remains constant.

• It decreases.

If a charge moves in the direction of the electric field, what can be said about the work done?

• The work done is zero.

• The work done is infinite.

• The work done is positive.

• The work done is negative.

What is the relationship between electric potential energy and electric potential?

• Electric potential energy is the product of charge and electric potential.

• Electric potential energy is the sum of charge and electric potential.

• Electric potential energy is the ratio of charge to electric potential.

• Electric potential energy is the difference between charge and electric potential.

What is the unit of electric potential?

• Joules

• Coulombs

• Volts

• Newtons

What is the electric potential energy of a 70 microcoulomb charge at a potential of 300 volts?

• 0.021 Joules

• 0.02 Joules

• 0.04 Joules

• 0.03 Joules

How is the electric field between two parallel plates calculated?

• E = mgh

• E = V/d

• E = qV

• E = 1/2 mv^2

How does the electric potential change with distance in a uniform electric field?

• It remains constant.

• It decreases linearly.

• It oscillates.

• It increases linearly.

What is the electric potential energy of a charge in a field if the charge is negative and the potential is also negative?

• Undefined

• Zero

• Negative

• Positive