Voltage follower
Electricity and Magnetism
Level
2
What is the expected voltage ,Vr
- Assume an ideal op-amp being supplied with +3 and -3 volt on its rails.
- Assume the 5 and 10 kilo ohm resistors used are common carbon film based, quarter watt.
- Assume the op-amp is connected as a voltage follower.
3
5
15
4
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
The op-amp cuts off at -3 V and 3 V. Providing some shielding against unwanted voltage spikes that could harm whatever the user connects to the other side (leg 6 of the 741 op-amp, differs in some cases). The voltage measured over the divider measures 5 V, however it's cut off at 3V