# Tagged: electricity

## estimate energy bills – the cost of living

visitors this year: 74 This quick post is for anybody wondering how much money they need to put aside for energy. If you don’t use electricity for keeping warm, your summer and winter electricity...

## comparing the cost of fuels for heating

visitors this year: 1,445 I am the person who wants to know if using an electric fan heater in one room costs less than heating the whole house using gas*. At parties I can...

visitors this year: 43

## primary ideas: electricity topic

IT ideas for an electricity topic

## capacitor charge and discharge

visitors this year: 60 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: 78 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: 82 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...

## heating effect of an electric current

visitors this year: 43 Heating effect of an electric current The temperature, voltage & current of a heating unit are measured over a period of time. This allows us to calculate the power of...

## electricity – lead acid accumulator

visitors this year: 44

## electricity induction in a coil

visitors this year: 140

## teaching current voltage & electrical components

visitors this year: 77

## electricity – battery for the job

visitors this year: 46

## current & voltage

visitors this year: 69

## characteristics of a thermistor

visitors this year: 139 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: 101 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: 53 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: 50 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: 42 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: 85 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...