====== Circuits I: Electrical Measurements ====== ---- ==== Common area ==== * Electrical parts box, including the following: * Spare bulbs and holders, * Spare LEDs, * Spare resistors (at least two different values), * Spare photoresistors, and * Spare pressure resistors. * Extra spare parts, especially the following: * Multimeters * 50 V power supplies * Breadboards * Alligator clips (for pressure resistors) * Masses (for pressure resistors) * Slide-wire potentiometer * Fuse repair kit, including the following: * Extra batteries (AAA) * Extra fuses (500 mA or 630 mA) * Philips screwdriver (medium-size) * Flathead screwdriver (small-size) | {{:phylabs:lab_courses:phys-120_130-wiki-home:winter-experiments:circuits-i-electrical-measurements:circuits_common_area.png?direct&400|}} | ==== Individual station ==== * 2 multimeters * 50 V power supply * Breadboard * Slide-wire potentiometer * Electrical parts: * Incandescent bulb (in holder), * LED (on board with resistor), * 2 resistors (preferably of two different values), * Photoresistor, * Pressure resistor (with alligator clips), and * ~4 masses (for use with pressure resistor) | {{:phylabs:lab_courses:phys-120_130-wiki-home:winter-experiments:circuits-i-electrical-measurements:circuits_individual.png?direct&400|}} | ==== Setup notes ==== On the 50 V/2A power supplies... * ...turn the current limit up to max (2 A), and * ...check the overload button (and reset if necessary). Check the multimeters to make sure there aren't blown 500 mA fuses (on the mA and $\mu$A settings).