Try the fastest way to create flashcards
Question

# If the collector supply voltage is doubled, what happens to the load line?

Solution

Verified
Answered 2 years ago
Answered 2 years ago
Step 1
1 of 2

If $V_CC$ increases, both characteristic curve points $I_{C(sat)}$ and $V_{CE(cutoff)}$ are affected in the same manner (remember that $I_{C(sat)}=V_{CC}/R_C$ and $V_{CE(cutoff)}=V_{CC}$), hence the load line keeps the slope constant but the intersection points with the axis ($I_{C(sat)}$ and $V_{CE(cutoff)}$) increase their values. In this case, with $V_{CC}=10\ \mathrm{V}$, then:

\begin{align*} I_{C(sat)}&=\frac{V_{CC}}{R_C}\\ &=\frac{10}{470}\\ &=21.28\ \mathrm{mA} \end{align*}

and $V_{CE(cutoff)}=V_{CC}=10\ \mathrm{V}$, both parameters were doubled too.

## Recommended textbook solutions

#### Fundamentals of Electric Circuits

6th EditionISBN: 9780078028229 (2 more)Charles Alexander, Matthew Sadiku
2,120 solutions

#### Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

4th EditionISBN: 9780133942651 (8 more)Randall D. Knight
3,508 solutions

#### Advanced Engineering Mathematics

10th EditionISBN: 9780470458365 (5 more)Erwin Kreyszig
4,134 solutions

#### Electronic Principles

8th EditionISBN: 9781259200144Albert Malvino
1,971 solutions