How much current is drawn by a lamp that has a resistance of 100 ohms when it is connected to a 50-volt souce?
If you could show me the formula and how you worked it. that would help me and my understanding! As always thank you so much for what you do for mel.
2006-12-12 04:23:45 · 5 answers · asked by cetinnovations 1 in Science & Mathematics ➔ Physics
hardy har har v = ir
v = voltage
i = current
r = resistance
50 volt = i * 100 ohms
i = (50 volt) / (100 ohm) = 0.5 amperes
2006-12-12 04:27:27 · answer #1 · answered by DanE 7 · 0⤊ 0⤋
Half an Amp. Use Ohms law, V=IR, where V is volts, I is amps and R is Ohms. Plug in 50 for V, 100 for R, 50=I*100, and solve for I. I = 50/100 = 1/2.
2006-12-12 12:25:50 · answer #2 · answered by campbelp2002 7 · 0⤊ 0⤋
FORMULA:
I=V/R
hence I=50/100
=0.5 ampere
2006-12-12 12:34:31 · answer #3 · answered by physics 2 · 0⤊ 0⤋
v = ir
50 = i * 100
i = 50 / 100
i = 0.5 amperes
2006-12-12 12:29:32 · answer #4 · answered by Anonymous · 0⤊ 0⤋
.5 amps
2006-12-12 12:32:53 · answer #5 · answered by Boatman 3 · 0⤊ 0⤋