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Ohm's Law

E = I x R Energy (potential) in Volts = I (current flow) in Amps x Resistance in Ohms

R = E / I Resistance in Ohms = Energy in Volts divided by I (current flow) in Amps

I = E / R I (current flow) in Amps = Energy in Volts divided by Resistance in Ohms

where E is Potential Energy measured in Volts

I is current flow measured in Amperes (Amps)

R is Resistance measured in Ohms

Watts Law

P = E x I Power in Watts = Energy (potential) in Volts x I (current flow) in Amps

these formulas are the first higher math I learned over 50 years ago at age 7. Have been useful off and on ever since - Steve Altig in West Linn, ORy-gun, USA

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Q: Sample problems of ohms law
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