Q. The voltage gain of triode amplifier is 30 and input voltage is $V_{i} = \sin{100\pi t}$, then output voltage will be
A) $30\sin 100\pi t$
B) $\sin 100\pi t$
C) $- 30\sin 100\pi t$
D) $- \sin 100\pi t$
Explanation
(c) $A_{v} = - \frac{V_{o}}{V_{i}}$
or $V_{o} = - A_{V} \times V_{i} = - 30\sin{100\pi t}$.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.