Potential Difference

Question 1

What is ‘Potential Difference’?

Answer 1

• The energy transferred per unit charged passed

Question 2

Describe what happens when a electrical charge goes through a charge in PD

Answer 2

• The energy is transferred

Question 3

What then happens to this energy?

Answer 3

• It is supplied to the charge at the power source to raise it through a voltage

Question 4

What does charge do to the energy?

Answer 4

• It gives up the energy when it falls through any voltage drop in components elsewhere in the circuit

Question 5

The bigger change in voltage causes what?

Answer 5

• More energy to be transferred for a given amount of charge passing through the circuit

Question 6

What is one volt equal to?

Answer 6

• 1 coulomb/1 joule

Question 7

What is the formula for potential difference?

Answer 7

Potential Difference = Current x Resistance