RadioQTH Lookup

Technician Exam

Question: T5C08

Question: What is the formula used to calculate electrical power (P) in a DC circuit?

1. P = I E
2. P = E / I
3. P = E - I
4. P = I + E

Correct Answer: A

For more questions that might appear on an Amateur Radio license examination, click on the "practice exams" link on the left panel.