Circuitry to measure sub-nano ampere current
81659
Current sensing nA to mA
91261
Op-Amp Input Resistor?
157865
Formula between wire size and current
138604
Replacing a diode-OR gate by a circuit that behaves the same way (also in the presence of feedback loops) without accumulating voltage loss
63145
Measuring Inductance
154634
Ampere's circuital law for finite current carrying wire
78805
how to resolve LM358's huge error as a current sense differential amplifier
153385
voltage divider -- for detecting higher voltage in ADC
58516
Limiting the short circuit current of a power supply
145546
Resistor wattage measurement
7084
ADC for measuring 0-5V but connected to 3.3V device
15114
Very high speed counter (around 1.5 GHz to 2 GHz)
114801
Amplify current and voltage to preserve battery
11261
Resistor circuit that isn't parallel or series
112351
Voltage amplifier analyze
95264
Conversion of Moving coil galvanometer to ammeter
114322
Making voltmeter accepting bipolar input voltage, using a microcontroller