Question

What is the potential difference across a toaster of resistance 27.4 Ω when the current flowing through it is 4.375 A?

a) 27.4 V
b) 119.75 V
c) 50.125 V
d) 14.875 V

Answer 1

Using Ohm's Law, the potential difference across a toaster with a resistance of 27.4 Ω and a current of 4.375 A is found to be 119.75 V, which corresponds to answer choice (b).

Step-by-step explanation:

The potential difference across a toaster when the current flowing through it is 4.375 A and its resistance is 27.4 Ω can be calculated using Ohm’s Law, which states that the potential difference (V) is equal to the current (I) multiplied by the resistance (R). In formula form, this is V = I × R.

By substituting the given values into the equation:

V = 4.375 A × 27.4 Ω
V = 119.75 V

Therefore, the correct answer is (b) 119.75 V.