The voltage supplied to an ac circuit is given by v(t) = (120 V) sin (377t). What is the voltage at t = 3.00 × 10⁻³ s? A) 0.00 V B) 2.37 V C) 63.0 V D) 109 V E) 119 V

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Quizplus · Accepted Answer

To find the voltage at $t = 3.00 \times 10^{-3}$ seconds, substitute $t$ into the given equation: $v(t) = 120 \sin(377t)$. Thus, $v(3.00 \times 10^{-3}) = 120 \sin(377 \times 3.00 \times 10^{-3})$. Calculating the sine value and then multiplying by 120 gives approximately 109 V.

The Voltage Supplied to an Ac Circuit Is Given by V(t)