what is the resistance of a toaster if 120v produces a current of 4.2 a
E = IR, so
120 = 4.2R
I want to know the answer
To find the resistance of a toaster, you can use Ohm's Law, which states that the resistance (R) is equal to the voltage (V) divided by the current (I).
Given:
Voltage (V) = 120V
Current (I) = 4.2A
Step 1:
Use Ohm's Law formula: R = V / I
Step 2:
Substitute the given values: R = (120V) / (4.2A)
Step 3:
Calculate the resistance: R = 28.571 ohms (rounded to three decimal places)
Therefore, the resistance of the toaster is approximately 28.571 ohms.
To determine the resistance of a toaster, you can use Ohm's Law, which states that the resistance (R) is equal to the voltage (V) divided by the current (I). In this case, you know the voltage is 120 V and the current is 4.2 A.
So, you can calculate the resistance using the formula:
Resistance (R) = Voltage (V) / Current (I)
Plugging in the values, we have:
R = 120 V / 4.2 A
Dividing 120 by 4.2 will give you the resistance of the toaster.