Tagged: electricity

capacitor charge and discharge

visitors this year: 47 Capacitor charge and discharge The voltage & current of a capacitor are measured as it charges and discharges. Sensors allow a graph to be plotted as this happens. The effect...

current and voltage

visitors this year: 60 Current-Voltage relationships In this experiment the resistance of a lamp, resistor or diode is measured as the current is varied. Voltage and current sensors make the measurements while the software...

characteristics of a thermistor

visitors this year: 49 Thermistor characteristics The voltage & current of a thermistor are measured as its temperature changes. Sensors allow graphs of voltage and current to be plotted against time. Not only can...

characteristics of a thermistor

visitors this year: 91 A thermistor is an electronic component whose resistance changes with temperature. The voltage and current of a thermistor can be measured as the temperature changes. Sensors allow you to take...

magnetic field in a coil

visitors this year: 76 You can ‘see’ magnetic fields using iron filings. You can measure the strength of magnetic fields using a magnetic field sensor connected to a computer. How, for example, does that...

current-voltage relationships

visitors this year: 38 In this experiment the resistance of a lamp, resistor or diode is measured as the current is varied. Voltage and current sensors make the measurements while the software plots the...

capacitor discharge

visitors this year: 25 The voltage and current in a circuit change when a capacitor charges and discharges. Computer sensors can measure these changes and software can plot a graph as fast as this...

types of battery 2

visitors this year: 26 Batteries or electrical cells are made using different substances. There are zinc dry-cells, alkaline cells and lead-acid accumulators. When you use them, the chemicals become exhausted at different rates. So...

types of battery

visitors this year: 57 Batteries are a handy source of power.¬†You’ll know that there are different kinds of batteries, and maybe that some are good for some jobs, and some for others. But battery...