An Investigation Into The Resistance Of Conductive Putty

422 Words1 Page

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 light bulb holder, a

battery pack, four crocodile clips, an ammeter, a power supply, a

piece of putty and four wires. I will need the light bulb to show if

the circuit is complete. The battery pack is control the electrical

currant and the crocodile clip and wire to carry the currant.

Safety

The first danger is the power of the electrical currant. To prevent

any danger of electrical shocks I will use the battery pack to control

the strength of the currant and turn it down to four cells. The power

will be DC (direct currant) and the putty used will be on a

non-conductive surface.

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

Open Document