What is the resistance of a toaster that uses 2A when connected to a 120V power source?

60 ohms

Explanation:

From Ohm's Law:

V = IR

Where V = 120volts

I = 2A

R = ?

Note that R, V and I represents resistance, voltage and current respectively.

Substituting the above values into the formula.

V = IR

120v = 2*R

120 = 2R

Making R the subject

R = 120/2

R = 60 ohms

Hence the resistance of the toaster will be 60 ohms.