A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to__________?
Correct answer: B. r.m.s. voltage
- A. average voltage
- B. r.m.s. voltage
- C. peak voltage
- D. none of the above
Explanation
AC equipment ratings use RMS voltage because it produces the same heating effect as an equivalent DC voltage. The 230 V rating therefore corresponds to RMS voltage, not the sine wave's peak value.
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