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## Homework Statement

A current of 22 amperes flows in a heater coil whose resistance is 5 ohms. What E M F in volts is required?

## Homework Equations

## The Attempt at a Solution

Not quite sure where to begin. I'm thinking the internal resistance, R, is inherent w/the circuit so EMF must be greater than the velocity calculated.

Velocity =IXR=22x5=110

EMF=V +IR = 110 + 22x5=220 volts

Any comments here on if this is correct?