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

An investigation into the efficiency of an immersion heater 2

Extracts from this document...

Introduction

An investigation into the efficiency of an immersion heater Introduction: An emersion heater is primarily used to heat water. It does this by using electrical power and converting it into heat energy. The amount of energy supplied to the emersion heater will be worked out using the formula: Voltage Current Time. The heat gained by the water was calculated by using the formula: Mass of water Specific heat Temperature change. This will then be used to calculate the efficiency of the heater. Efficiency is how good the item being tested is at retaining energy: The ratio of the energy delivered by a machine to the energy supplied for its operation determines the items efficiency. ...read more.

Middle

am using as well as the S.W.G of the wires but not the length of the wire so as to get a variety of results ands therefore see what wire is more efficient to use in the immersion heater. Results: Below are the tables of the results I got once I had carried out the experiment. Constantan 28 S.W.G Length Voltage (v) Amps (c) Time in water Electrical energy Initial temp (oC) Final temp (oC) Temp change (oC) 40cm 9.30 4.30 2 minutes 4798.8 23 35 12 Nickel chrome 28 S.W.G Length Voltage (v) Amps (c) Time in water Electrical energy Initial temp (oC) ...read more.

Conclusion

as you are producing other types of energy which you don't need and therefore have no use for and are wasted. I also concluded that by using constantan wire is more efficient than nickel chrome wire. I also found out that carbon wire is not a good type of wire to use as it burned out too quickly. Things that I would change about this experiment if I was to do it again would be that I would try more types of wires and a different variety of S.W.G s as there weren't many different types of S.W.G s available at the science lab. ?? ?? ?? ?? Page: 2 Mohamed Hassan student no: 20042512 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Electricity and Magnetism section.

Found what you're looking for?

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

Here's what a teacher thought of this essay

3 star(s)

This report has an appropriate structure and the language used is good.
1. The plan is missing several sections including a variables and safety section.
2. The conclusion is very brief and does not use the data to back up the claim.
3. The report is missing an evaluation section.
***

Marked by teacher Luke Smithen 05/09/2013

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 GCSE Electricity and Magnetism essays

  1. Peer reviewed

    Investigation in resistance in wires

    5 star(s)

    adding to the table. This was a simple and easy way to lower the problem of heating. In addition to those changes I noticed that measuring the wire to the correct length was a problem and changing the length was time consuming, so I added a retort stand, clamp and a set of 100g weights.

  2. Electromagnetism - investigating what effect increasing the number of turns in a coil on ...

    The only changes that I will be making to the experiment is the number of coils on the core, I will do this by taking the electromagnet out of the clamps and wrapping ten more turns on to it, and then replacing it.

  1. Investigate how mass affects the diameter of an impact crater.

    since the bowling ball is heavier than the tennis ball, it would have more stored energy which would result in a larger collision. This determines my prediction: PREDICTION: Crater diameter increases with increasing mass. Below is my predicted trend of results demonstrated as a line graph: The graph shows that

  2. Does the height of a crater affect the diameter of the crater produced?

    This experiment was good because it tells me all the things that I needed to know for this experiment which it 'Does the height of a crater affect the diameter of the crater produced?' the answer to this is yes because the higher the ball is dropped from the bigger the crater is that is produced.

  1. An experiment to find the resistivity of nichrome

    The length of the wire affects the resistance of the wire because the number of atoms in the wire increases or decreases as the length of the wire increases or decreases in proportion. The resistance of a wire depends on the number of collisions the electrons have with the atoms

  2. Craters Investigation

    · The size of the ball bearing because the bigger the ball bearing the more of it there is to hit the sand, therefore the crater it makes will be not necessarily deeper but it will be wider. Because I am measuring the width of the crater I need to keep the size of the ball bearing the same.

  1. Find the realtionship between gravitational potential and kinetic energy

    Since the experiment is being performed on earth, the gravitational constant (9.8 m/s) remains the same throughout the experiment. * Friction- Friction is one of the factors may use some of the energy when it is being converted into kinetic (movement)

  2. How does the mass of a vehicle affect its stopping distance when brakes are ...

    Repetitions The repetition of results is crucial to gain the best and most accurate results. The experiment will be repeated 4 times, for each of the masses, and an average will be taken, so that if any anomalous results occur then it will not affect the outcome as much as if only 2 recordings were taken for example.

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