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# heat equation watch

1. attached is the question. i can't seem to figure out initial and boundary conditions. here is what i have so far:

V(x, 0) = V_o - (V_o/d)x
V(d, t) = 0
V(0, t) = -V_o

however, i don't think they're correct. can anyone help?

(for those who have no knowledge of electricity, we assume that "earth" has 0 voltage relatively)
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2. lol. 0 views.
3. (Original post by idunnowhattoputhere)
lol. 0 views.
I don't think that counter is correct since I looked at it a while back.

My only comment is regarding "V(0, t) = -V_o"

If t is >= 0 then surely "V(0, t) = 0" as it's just been connected directly to earth.
4. (Original post by ghostwalker)
I don't think that counter is correct since I looked at it a while back.

My only comment is regarding "V(0, t) = -V_o"

If t is >= 0 then surely "V(0, t) = 0" as it's just been connected directly to earth.
but to bring the voltage from V_0 to 0 at that point, don't you need a step of height -V_0?
5. No. Stating the obvious, but if you want the voltage to be 0 at that point, then you need the voltage to be 0 at that point.

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