880PhysicsMedium
A 10Ω electric heater is connected to a 220V 50Hz mains supply. What is the peak value of the potential difference across the heater element ?
A220 √2V
B110V
C220/ 2V
D220V
Correct answer
A. 220 √2V
Explanation
220 √2V is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.