Dimon wrote:
"If they are in series, the voltage at each resistor is half, so therefore the current will also be half in each motor."
Not quite correct.
Yes, half the current is flowing, but all that current is flowing through each motor.
Mr. Kirchhoff would say something like "All the current entering a node leaves that node.".
I'm sure that's what you meant.
-Tom
---In electricboats@yahoogroups.com, <electricboats@yahoogroups.com> wrote:
Hmm - if you maintain a fixed voltage over two equal resistors in parallel, then you will get the expected curent (I = V/R) through each resistor. Since the (equal) resistors are in parallel, the total effective resistance is halved, and current drain from the battery will double.
Basically you will need a controller (and batteries) capable of handling twice the current flow typical of one motor.
If they are in series, the voltage at each resistor is half, so therefore the current will also be half in each motor. Mounting resistors in series doubles the overall resistance, so the overall current will be halved.
If you want a simple analogy, imagine a water flow, and each motor is a pipe of similar diameter. If you have two pipes in parallel to channel the water, the water will flow twice as fast. If on the other hand, the pipes are in series, then the drag on the water flow will be greater than through one length of pipe by itself.
---In electricboats@yahoogroups.com, <electricboats@yahoogroups.com> wrote:
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