A toy train has a current of 2.5 Amps and an internal?

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A toy train has a current of 2.5 Amps and an internal?

resistance of 3 ohms. How much voltage would this toy train require?

2007-12-25 14:53:21 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics

3 answers

It all depends on power requirements (In real world requirements)

or in this case

V= IR= 2.5 x 3= 7.5 V

2007-12-25 15:08:14 · answer #1 · answered by Edward 7 · 1⤊ 0⤋

Typical = 7.5 volts for after start run. you'll have the starting voltage and inrush current to get the engine and load to move. it's the same for all of them. recall that the real engines do spin there wheels for a few seconds to over come that dead start.

2007-12-25 23:24:13 · answer #2 · answered by Anonymous · 0⤊ 0⤋

U=RI=2.5x3=7.5V

2007-12-26 00:24:23 · answer #3 · answered by Anonymous · 0⤊ 0⤋