Math science?

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A 3 V battery sends a current of 0.10A through a light bulb. What is the resisitance of the filament of the bulb?

2007-03-01 10:11:52 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science

3 answers

If we ignore the resistance of the battery and the wires, we can say that I = V/R where I is the current in amperes, V is the Potential Difference in volts and R is the resistance in Ohms. So, in this case, we have 0.1 = 3/R or R = 3/0.1 = 30 ohms

2007-03-01 10:21:52 · answer #1 · answered by Swamy 7 · 0⤊ 0⤋

30 ohms

2007-03-01 18:19:49 · answer #2 · answered by Anonymous · 0⤊ 0⤋

v= IR, V=3, A= 0.1, you can do the rest.

2007-03-01 18:15:24 · answer #3 · answered by cattbarf 7 · 0⤊ 0⤋