Question

The current flowing through the heating element when a toaster is plugged into a 230V mains supply, if the element has a resistance of 265Ω.

Answer 1

The current flowing the heating element is 0.868 amperes.

Step-by-step explanation:

Ohm's law states that voltage is directly proportional to current. In other, words, we say that:

`V \propto R`

`V = i\cdot R` (1)

Where:

`V` - Voltage, measured in volts.

`i` - Current, measured in amperes.

`R` - Resistance, measured in ohms.

If we know that
`V = 230\,V` and
`R = 265\,\Omega`, then the current that flows through the heating element is:

`i = (V)/(R)`

`i = (230\,V)/(265\,\Omega )`

`i = 0.868\,A`

The current flowing the heating element is 0.868 amperes.