P5.4 - Electrical Currents And Energy Transfer (Unfinishedj

Question 1

What is the equation that links charge flow, time and current? (Give units)

Answer 1

Charge flow (coulombs (C) = current (A) * time (s)

Question 2

Why does a resistor become hotter when charge flows through it?

Answer 2

When a charge flows through a resistor, energy is transferred to the resistor so it becomes hotter

Question 3

When an electrical charge goes through ___ then energy is transferred

Answer 3

A change in potential difference

Question 4

What is the equation that links energy transferred, charge flow and potential difference?

Answer 4

Energy transferred (J) = charge flow (C) * Potential difference (V)

Question 5

How does a battery transfer energy around a circuit?

Answer 5

The battery gives electrons charges (e.g. a 12v battery will give each one 12J). They travel around the circuit and transfer energy to components by giving up charge when going through any potential drop in components. and returns to the battery with 0v

I think this deck is not finished