Question

An electric toaster has a power rating of 1100 W at 110 V. What is the resistance of the heating coil?

Answer 1

 R = 11 ohms

Explanation:

Given parameters:

Power of the electric toaster = 1100W

Voltage = 110V

Unknown:

Resistance, R of the heating coli = ?

Solution:

Electric power is given as:

     Electric power = IV

where:

  I is the current

  V is the voltage

       According to Ohm's law, V = IR

 where R is the resistance. If we make current the subject of the formula and substitute, it gives:

                  Power = $\frac{[tex]V^{2}$}{R}[/tex]

  Power =  $\frac{[tex]110^{2}$}{R}[/tex]

     R = $\frac{Power }{[tex]110^{2}$}[/tex] =  $\frac{1100 }{[tex]110^{2}$}[/tex]

   R = 11 ohms

learn more:

Power supply brainly.com/question/4322575

#learnwithBrainly