H2P-369
Sinusoidal alternating current
H2 Physics · JC 2 · Easy · Sinusoidal alternating current
The instantaneous output voltage of an a.c. supply is given by , where is in volts and in seconds. Calculate the r.m.s. value of the voltage.
- 85 V
- 100 V
- 120 V
- 170 V
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