• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

To see the effect of volume current on the effectiveness of an immersion heater heating 75 cm3 of water.

Extracts from this document...


The immersion heater experiment

Aim – To see the effect of volume current on the effectiveness of an immersion heater heating 75 cm3 of water.

Apparatus: -

Immersion Heater

Small Beaker

Variable resistor




Power pack


Input variable

Current in circuit

Control Variables

Volume of liquid

Type of liquid

Amount of insulation

Size/shape of beaker

Size/shape of immersion heater

Thermometer used

Time readings are taken over

Start temperature of liquid

Output variable

Temperature change in 5 minutes


        A small beaker was filled with 75cm3 of water at 24 degrees Celsius. A circuit was made that incorporated an immersion heater, an ammeter, a voltmeter, and a variable resistor.

The immersion heater was placed into the beaker of water and the current was set to maximum on the resistor. Two readings were taken for each set of results.


        I predict that the current in the circuit will be proportional to the temperature change i.e.

...read more.



Vol. Of H20

Current (A)

Voltage (V)

Temp. change 1

Temp. change 2




















...read more.


If we wanted to make sure that no heat was lost at all from our experiment then we would have to do the experiment in a vacuum. This is of course impossible in our case because we do not have the equipment to do this.

If I was to do the experiment again I would try to iron out all of the anomalies in my results by changing and adapting all of the things that affected my results this time round.

...read more.

This student written piece of work is one of many that can be found in our AS and A Level Electrical & Thermal Physics section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Electrical & Thermal Physics essays

  1. Investigating the relationship between pressure, volume and temperature of a gas

    Hence the air inside is conditioned to change its pressure and volume at constant temperature. Procedure (I)V-T at constant P and (II) P-T at constant V As it takes time to heat up a large beaker of water, relationships (I)

  2. Investigating the factors affecting the size of current flowing through a length of resistivity ...

    A ruler. BASIC METHOD The basic method involved passing a current through putty with different lengths or cross-sectional areas and measuring the size of the current. The apparatus was set up as shown in the diagram below: The circuit was set up as shown on the previous page.

  1. Heating Effect of a Electrical Current

    So the less water, the temperature will increase more and vice versa. Therefore water is a factor for temperature change so must be kept constant for a fair test. Why time should be kept constant: This is because if there is more time for the heater to convert the electrical energy to heat energy, the water will heat up more.

  2. Factors Affecting The Heating Effect Of A Current.

    is 10V then 50W of electric power is supplied to it. However, it may only produce 40W of mechanical power, the other 10W being the rate of production of heat by the motor windings due to their resistance. The expression P = V�/R shows that for a fixed supply p.d.

  1. Investigating the Effect of Concentrations of Solutions

    So I predict that the more ions that are added (the more salt ions) then the more ions that can carry the charge (as positive and negative ions carry charge) and so the more charge that is carried the more current that can flow (current=charge/time).

  2. What variables effect omosis in potatoes

    I can relate this to my prediction about the increase in current. I think that more current will affect the strength of the magnet; as the current is increased the more domains arrange in the same direction, this continues to occur until the core reaches saturation point and an increase in the current has little further effect.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work