Solve.
-In an electric circuit, the electromotive force is defined as $\mathrm { V } = \cos 2 \pi t$, where $t$ is time in seconds. Solve the equation for $t$.
A) $t = 2 \pi \cos V$
B) $t = \frac { 1 } { 2 \pi }$ Arccos V
C) $t = 2 \pi$ Arccos $V$
D) $t = \frac { 1 } { 2 \pi } \cos V$

Question

Quizplus · Accepted Answer

To solve for $t$, we need to isolate $t$ on one side of the equation. Given $\mathrm { V } = \cos 2 \pi t$, we take the inverse cosine (arccos) of both sides to get $2 \pi t = \arccos(V)$. Dividing both sides by $2 \pi$ gives $t = \frac { 1 } { 2 \pi }$ Arccos $V$, which matches option B.

Solve -In an Electric Circuit, the Electromotive Force Is Defined V=cos⁡2πt\mathrm { V } = \cos 2 \pi tV=cos2πt

Solve
-In an Electric Circuit, the Electromotive Force Is Defined $\mathrm { V } = \cos 2 \pi t$