Question

Your toaster is plugged into the counter electrical outlet. If 3.50 J of energy is supplied to the toaster to output 1.5 J of thermal energy to toast your food, what is the efficiency of the toaster?(1 point) Responses 20% 20% 2.3% 2.3% 42.9% 42.9% 50% 50%

Answer 1

The efficiency of the toaster can be calculated by dividing the output energy (1.5 J) by the input energy (3.50 J) and multiplying by 100 to convert it to a percentage.

Efficiency = (Output Energy / Input Energy) * 100
Efficiency = (1.5 J / 3.50 J) * 100
Efficiency ≈ 42.9%

Therefore, the efficiency of the toaster is approximately 42.9%.