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# Help ASAP SCIENCE watch

2. Use the formula V=IR
V is voltage, I is current and R is resistance
3. How do I do the lamp question
Attached Images

4. Help ASAP
5. (Original post by Laurenafenete)
Use the formula V=IR
V is voltage, I is current and R is resistance
Help
6. (Original post by Alaoso)
Help
I need a proper picture of the circuit first
7. Ok
8. Hi
Attached Images

9. (Original post by Laurenafenete)
I need a proper picture of the circuit first
Hello
10. (Original post by Alaoso)
Hello
whats the whole question?
11. It's there
12. (Original post by Laurenafenete)
I need a proper picture of the circuit first
13. Give me a sec, trying to upload the pic

And there we go
Btw if you cant read it, it says o.5 A
http://www.thestudentroom.co.uk/atta...1&d=1456437829
14. The current through the ammeter is equal to the total current going through the circuit before it. therefore the current through the lamp and resistor is equal to that of the ammeter, 0.9 amps. take the current through the resistor away from that of the ammeter. 0.9 - 0.4 amps, and you are left with the current through the lamp. 0.5 amps
15. Thanks makes sense

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