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Operational Amplifiers

100

Waht is the gain formula for a non-inverting amplifier

V_in / V_out = R_f / R_i + 

200

What is the relationship of V_ and V₊ for negative feedback

Theyre the same

300

What is the general purpose of an opamp

Amplify the difference between two input voltages

400

What does an integrating opamp use.

capacitor

500

What are the features of an idea opamp

Infinite input impedance, zero output impedance, infinite open-loop gain

What is this component

100

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wire

200

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resistor

300

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Capacitor

400

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Inductor

500

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Diode

Equivalence

100

two 4 ohm resistors in series

8 ohms

200

three 6 ohm resistors in parallel

2 ohm

300

Impedance of a 0.5 H inductor with a frequency of 60 Hz

60pi j

400

Vth of a circuit with a 12V source in parallel with terminals a-b

12V

500

A 0,1F capacitor in series with a 8L inductor with w = 10

8j

Sneaky things

100

How to find the voltage of a resistor with 2 in series

Voltage division

200

How to find Rth with both Dependant and Independant sources

Short circuit the terminals and its given by Vth / isc

300

How do you do Nodal analysis with a voltage source between 2 nodes

The 2 nodes become a supernode

400

How do you do AC analysis with both AC sources with different angular frequencies AND DC sources

Superposition of each source

500

How do you do voltage division into this circuit (ill show you)

Find Req of the 3 right resistors, voltage divide, then voltage divide into the rightmost branch