2006-07-29 00:29:11 · 7 answers · asked by muthupandi p 1 in Science & Mathematics ➔ Physics
The speed of current in a river can be measured in feet per second. And that is similar to the flow of current in an electric circuit. A battery serves as the source of pressure and a circuit is like a water pipe. When you connect the battery it starts to shove electrons in at one end and sucks them out the other end of the circuit. The rate of current flow (amps) will depend on the voltage and the resistance to flow: E = IR. Therefore, the speed of the electric current can vary from almost zero to almost instantaneous (if voltage is great enough to arc?). The important consideration is that electrons experience the same shove all along the circuit at the speed of light. A crude example might be to form a long row of basket balls all the way from NYC to LA. At NYC you shove one more ball into the line and at LA one ball is pushed from the line without delay (at the speed of light). All the balls traveled only the width of one ball but the last ball felt the shove at the speed of light. Hope that helps a little.
2006-07-29 01:41:30 · answer #1 · answered by Kes 7 · 0⤊ 0⤋
The speed of light.
2006-07-29 00:33:00 · answer #2 · answered by BuyTheSeaProperty 7 · 0⤊ 0⤋
current is like an introduction to what's coming Imediately afterward. Speed is irrelevant.
2006-07-29 00:41:37 · answer #3 · answered by Boliver Bumgut 4 · 0⤊ 0⤋
I agree with the answer of Kes.
2006-07-29 06:58:06 · answer #4 · answered by akash 1 · 0⤊ 0⤋
3x1000000000 m/s
2006-07-29 00:33:49 · answer #5 · answered by kkk 2 · 0⤊ 0⤋
measure it... blame physics...
2006-07-29 00:32:29 · answer #6 · answered by ♫♫♫ EL Dindo 3 · 0⤊ 0⤋
uh huh?!?!?
2006-07-29 00:34:00 · answer #7 · answered by karishma r 2 · 0⤊ 0⤋