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This is the part where I beg for help.
I rarely ask for help from you gaylords, because the truth is, the majority of you are idiots.
Anyway, that's the flattery out of the way...
Physics - the subject of joy. I'm stuck on this question.
It's worth 3 marks. Anyway;
"The resistance of a length of bare uniform resistance wire is 30 ohms. The length of wire is folded into the shape of a square and the ends soldered together as shown below
(a picture of a square with an ohmmeter connected to it) - [URL]http://firestorm.staghosting.com/image.jpg[/URL]
What value of resistance would the ohmmeter read if it is connected as shown at the mid-points of opposite sides to the square?
(You may ignore the resistance of the ohmmeter leads)"
***
Cheers for any help people - I'm honestly at a loss.
And merm, if you claim it's 600 joules, I will hit you.
I rarely ask for help from you gaylords, because the truth is, the majority of you are idiots.
Anyway, that's the flattery out of the way...
Physics - the subject of joy. I'm stuck on this question.
It's worth 3 marks. Anyway;
"The resistance of a length of bare uniform resistance wire is 30 ohms. The length of wire is folded into the shape of a square and the ends soldered together as shown below
(a picture of a square with an ohmmeter connected to it) - [URL]http://firestorm.staghosting.com/image.jpg[/URL]
What value of resistance would the ohmmeter read if it is connected as shown at the mid-points of opposite sides to the square?
(You may ignore the resistance of the ohmmeter leads)"
***
Cheers for any help people - I'm honestly at a loss.
And merm, if you claim it's 600 joules, I will hit you.
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Lindgren wrote:
> I think this is right Forza, the wire being bent has no effect and
> theres nothing to change the resistence as there apparently is no
> voltage and no current, so its still 30 ohms.
But it's worth 3 marks!
I doubt you'd get 3 marks from an exam question for simply saying "30 ohms".
> I think this is right Forza, the wire being bent has no effect and
> theres nothing to change the resistence as there apparently is no
> voltage and no current, so its still 30 ohms.
But it's worth 3 marks!
I doubt you'd get 3 marks from an exam question for simply saying "30 ohms".
I'd think it'd be evently distributed, 15ohms a side.
poopots wrote:
> Wont it remain 30 Ohms? Its still travelling through the same amount
> of distance, I’m sure bending it wont effect it that much.
I think this is right Forza, the wire being bent has no effect and theres nothing to change the resistence as there apparently is no voltage and no current, so its still 30 ohms.
> Wont it remain 30 Ohms? Its still travelling through the same amount
> of distance, I’m sure bending it wont effect it that much.
I think this is right Forza, the wire being bent has no effect and theres nothing to change the resistence as there apparently is no voltage and no current, so its still 30 ohms.
We have an image!
[URL]http://firestorm.staghosting.com/image.jpg[/URL]
[URL]http://firestorm.staghosting.com/image.jpg[/URL]
Isn't Higher = AS and then Advanced Higher = A2?
We must have it very hard then, I remember last year doing a lesson on it and we had to work out the resistance with various set-ups. Not stuck with me though, I can’t remember a thing.
yES
Age 16-18 yeah?
A-Level equivalent I think.
Sorry, my mistake.
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