Yes, but it is not very useful in open loop mode. In open loop mode, unless you happen to be very lucky (as in extraordinarily lucky, meaning you won't be) the output will be pegged to one of the two rails. The op-amp will be operating in saturated mode instead of linear mode, and its response time will suffer. You could also damage the op-amp.
A: Usually by looking at the specification for that op-amp and there will be accuracy deviation from device to device. To use it open loop is practically impossible all it tells from specification that there will be enough gain when the loop is closed and the max frequency available
A practical opamp is designed to approach the characteristics of the ideal opamp as closely as possible. The open loop voltage gain of an ideal opamp is infinite, so while this is actually impossible to achieve practical opamps are built with as high an open loop voltage gain as possible.
Ideal op amp approximations: -no current goes into the positive or negative input of the op amp. -The open loop gain is infinite. -Voltage at positive input is the same as the negative input.
So long as you remain with the range of the device (power supply rails less a volt or two), the output of an op-amp will go to what ever value is required to maintain the input stages (bridge) to remain the same. So, the effect on input voltage on output of an op-amp is dependent on the feedback circuit.
You can measure the electrical current with an amp meter. Amperage measures the current flow.
A; An ideal op amp should have infinite open loop gain so when the loop is closed with negative feedback it will be stable
A: Usually by looking at the specification for that op-amp and there will be accuracy deviation from device to device. To use it open loop is practically impossible all it tells from specification that there will be enough gain when the loop is closed and the max frequency available
A practical opamp is designed to approach the characteristics of the ideal opamp as closely as possible. The open loop voltage gain of an ideal opamp is infinite, so while this is actually impossible to achieve practical opamps are built with as high an open loop voltage gain as possible.
yes...yes it is
It could do, which is why an op-amp is made with a very high open-loop gain so that the actual gain can be closely controlled by the passive feedback components.
Ideal op amp approximations: -no current goes into the positive or negative input of the op amp. -The open loop gain is infinite. -Voltage at positive input is the same as the negative input.
It is between 100,000 and 1,000,000 and even more. In dB, it is between 100dB to 120dB.
Line 6 Jam amp
To incorporate an effects loop into your amp if it does not already have one, you can consult a professional technician or purchase an external effects loop pedal that can be connected between your guitar and the amp. This will allow you to add effects pedals into the signal chain without altering the amp itself.
It's called feedback. The microphone causes a loop, what is coming out if the amp is being asorbed by the mic, sent back to the amp and projected again. The loop causes a squeal.
A; the stability is a function of gain assuming perfect matched input the range can be from a gain of practically Nil to close to open loop configuration
A: It does not. The loop becomes unstable ONLY if there is positive feedback either voltage or phase. For a close loop to be stable negative feedback is required.