Use the formula V=IR
V is voltage, I is current and R is resistance
V is voltage, I is current and R is resistance
Original post by Laurenafenete
Use the formula V=IR
V is voltage, I is current and R is resistance
V is voltage, I is current and R is resistance
Help
Original post by Alaoso
Help
I need a proper picture of the circuit first
Original post by Laurenafenete
I need a proper picture of the circuit first
Hello
Original post by Alaoso
Hello
whats the whole question?
Original post by Laurenafenete
I need a proper picture of the circuit first
Give me a sec, trying to upload the pic
And there we go
Btw if you cant read it, it says o.5 A
idk why the photo isn't uploading but here is the link to the photo
http://www.thestudentroom.co.uk/attachment.php?attachmentid=507719&stc=1&d=1456437829
And there we go
Btw if you cant read it, it says o.5 A
idk why the photo isn't uploading but here is the link to the photo
http://www.thestudentroom.co.uk/attachment.php?attachmentid=507719&stc=1&d=1456437829
(edited 8 years ago)
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
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