Part of The Student Room Group

  • 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 Resistance Of Conductive Putty

Extracts from this document...

Introduction


An Investigation Into The

Resistance Of Conductive Putty

Primary Work

In this experiment I will be using conductive putty for the first time. I do have knowledge of electrical circuits such as parallel and series. I have knowledge of electrical equipment like bulbs, battery cells and variable resistors. And I have knowledge of the circuits’ advantages and disadvantages. My plan is to use the putty in a series circuit with an ammeter and record the currant.

Prediction

I believe that the shorter the piece of putty the stronger the currant will be. I believe this because I have found that electrons always take the shortest route.

Apparatus

In this experiment I will need; a light bulb, a

...read more.

Middle

What factors could affect what happens

There are two obvious factors what come to mind and that is inaccurate measuring and uneven amount of putty. I will have to be careful with the measuring of the putty and the amount removed each time.

What I am going to change

In the experiment I am going to keep the putty’s diameter the same but change the length each time and record the amps with each reduction in the putty.

What I will measure in

I plan to measure the putties length and diameter in centimetres and the currant in amps.

What factors I am going to keep the same

In the experiment I am going to keep a

...read more.

Conclusion

Method

  1. First I will set up the circuit to match the planned diagram and make sure all of the equipment is working properly. And also set the power pack to four cells.
  2. Now I will chose the largest length of putty and add it to the circuit.
  3. I will now record the reading on the ammeter and turn the power off.
  4. I will then repeat the experiment but remove a piece of putty each time and record each result.

Did anything strange happen

After the experiment I didn’t have any irregularities in the results or the experiment.

Changes to the original plan

In the experiment I used two 2 pence copper coins at each end of the putty and attached the wire to them.

...read more.

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

or


Here's what a teacher thought of this essay

3 star(s)

The structure of this report is adequate but the sections lack detail.
1. There needs to be an introduction section as well as a table of results and analysis.
2. The evaluation questions lack detail.
3. There is a running commentary throughout this investigation that needs to be removed.
***

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. Marked by a teacher

    The factors affecting the resistance of a metalic conductor.

    4 star(s)

    V1 +V2 IR = IR1 + IR2 R = R1 + R2. In relation to length this would become: L = L1 + L2 Owing to the fact that the circuit is in series, there are actually two wires in use that have been connected (using a series connection)

  2. Peer reviewed

    resistance of a wire

    3 star(s)

    Wire A Voltmeter By changing the length of the 18 SWG constantan wire we can see the differences that happen. The ammeter is used in the circuit to see how much current there is in the circuit. The voltmeter in the circuit will be used to see how much voltage there is in the circuit.

  1. Conducting Putty

    triangular, circular or square. * Length - The longer the conducting putty, the higher the resistance as the current has a longer distance to travel through the wire and would therefore increase the resistance. * Area and thickness of the ends - in a thick wire there are two paths

  2. Factors affecting Resistance of a wire

    28 SWG volts 28 SWG amps Average Resistance (?) Test 1 2 3 Average Test 1 2 3 Average Measured in seconds Measured in seconds 10 0.29 0.30 0.30 0.30 0.2 0.2 0.2 0.2 1.50 20 0.60 0.60 0.59 0.60 0.2 0.2 0.2 0.2 3.00 30 0.89 0.92 0.88 0.90

  1. The Bouncing Ball Experiment

    The height of each bounce was measured with metre rulers. Drop Height (cm) 1st Reading (cm) 2nd Reading (cm) 3rd Reading (cm) Average bounce height (cm) 100.0 66.0 69.0 66.5 67.2 200.0 107.3 104.0 105.3 105.4 300.0 123.0 130.0 127.0 126.7 Conclusion: There were no obviously anomalous results.

  2. Resistance of a Wire Investigation

    be started with the length of wire that is long enough so that the amps are not too high, as otherwise, this would result in an increase in temperature which is not related to increased resistance. We have chosen to calculate the resistance of the wire in intervals of 5 cm, starting at 5cm, and going up to 70cm.

  1. Factors affecting the strength of an electromagnet

    processed is the diameter of the wire to find the cross-sectional area of the wire. Processed Data Table Table 2: Table showing the variation in distance at which the compass deflects with change in no.of coils and cross-sectional area of the wire.

  2. Resistivity in a wire coursework

    there is likely to be more collisions in a longer wire because there will be more ions. Metals contain a large number of free electrons. As these free electrons move through the wire, they collide with metal ions that are vibrating.

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