Question

An electric heater works by passing a current of 112 amps through a coiled metal wire, causing it to become red hot. If the resistance of the wire is 0.95 ohms, what voltage must be applied to it?

Answer 1

V=IR
V=(112)(0.95)
V=106.4 volts

Answer 2

Voltage, V = 106.4 volts

Step-by-step explanation:

It is given that,

Current passing through coiled metal wire of electric heater, I = 112 amps

Resistance of the wire, R= 0.95 ohms

We have to find voltage applied to the electric heater. It can be calculated using Ohm's law. Mathematically, it can be written as :

`V=IR`

`V=112* 0.95`

V = 106.4 volts

Hence, this much amount of voltage must be applied to the electric heater.