I need help figuring out a electrical equation E=_____ P=150mW R=6.8k?

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I need help figuring out a electrical equation E=_____ P=150mW R=6.8k?

2007-01-28 06:31:14 · 3 answers · asked by Randy Z 1 in Science & Mathematics ➔ Mathematics

3 answers

P = I² R, where I = current and R = resistance.

So once you know the current, then you can calculate voltage E, where E = I R

2007-01-28 06:45:20 · answer #1 · answered by . 4 · 0⤊ 0⤋

If R stands for rate=6800 s^-1
then Energy E=P/R=0.15/6800=22uJ

2007-01-28 06:57:48 · answer #2 · answered by Paul B 3 · 0⤊ 1⤋

Find Current

I = current

I = âp/r

I = â150 / 6.8

I = â22.05882353

I = 4.69682183 amps

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Formula for voltage

E = IR

E = 4.696882183(6.8)

E = 31.93743885 volts

E = 31.94 volts rounded to two decimal places

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2007-01-28 07:50:12 · answer #3 · answered by SAMUEL D 7 · 0⤊ 0⤋