# Electrical Energy Calculations (Higher(

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#1
https://sewales.org.uk/Science/Scien...her)-docx.aspx
This is homework sheet I have been given.
I have done upto Q1 section A
I am struggling to understand the other questions and if someone could help me that would really help!!!
0
2 years ago
#2
(Original post by cocktailbaby1911)
https://sewales.org.uk/Science/Scien...her)-docx.aspx
This is homework sheet I have been given.
I have done upto Q1 section A
I am struggling to understand the other questions and if someone could help me that would really help!!!
These appear to be testing your knowledge of the definition of Electrical units.

1 Amp = 1 Coulomb per second
1 Volt = 1 Joule per Coulomb

as you'll recall from other units
1 Watt = 1 Joule per second

so electrical power (Watts) = Volts x Amps

---
so e.g.
1bi

current through the lamp is 2Amps... which is 2 coulombs per second

question wants to know how many coulombs pass through the lamp in 300 seconds... it's 300 times the number passing through the lamp in one second.
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