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Alternating Current vs Direct Current

Q1: What is the peak-to-peak current value when an ammeter measures a 20 mA value?

A 14 mA

B 28 mA

C 40 mA

D 57 mA

ANS:D - 57 mA

To convert from RMS to peak to peak voltage:

(RMS x 1.414) x 2=P-P

For example:

120vac x 1.414= 170vac
169.68vac x 2 = 339.36vac P-P



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