21. Electricity & Circuits: Energy & Power in Circuits Flashcards
1
Q
What are Electrical devices built to do?
A
2
Q
What does Energy Transferred depend on?
A
3
Q
What is the equation for Energy Transferred?
A
4
Q
Where is Energy transferred from?
A
5
Q
Why is heating a circuit not always bad?
A
6
Q
Laptop charger connected to a 230V source for an hour. Current of 8A flows through it. Calculate the energy transferred by the laptop charger
A
7
Q
What is Power in Circuits?
A
8
Q
What does Energy transferred depend on?
A
9
Q
What is the equation for Power?
A
10
Q
What is a Power Rating?
A
11
Q
What else does Power depend on?
A
12
Q
What is the equation for Power?
A
13
Q
What is equation for Power if don’t know the Potential Difference?
A
