If you triple the rms voltage in an ac circuit, what happens to the maximum voltage?
A) It increases by a factor of .
B) It decreases by a factor of .
C) It decreases by a factor of 3.
D) It increases by a factor of 3.
E) It increases by a factor of 9.

Question

If you triple the rms voltage in an ac circuit, what happens to the maximum voltage?
A) It increases by a factor of . 
B) It decreases by a factor of . 
C) It decreases by a factor of 3. 
D) It increases by a factor of 3. 
E) It increases by a factor of 9.

Quizplus · Accepted Answer

The maximum voltage in an AC circuit is equal to the rms voltage multiplied by the square root of 2. Therefore, if the rms voltage is tripled, the maximum voltage will also be tripled (sqrt(2) is a constant). Therefore, the answer is D) It increases by a factor of 3.

If You Triple the Rms Voltage in an Ac Circuit