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

# Investigation into how Temperature affectsthe Resistance.

Extracts from this document...

Introduction

Investigation into how Temperature affects the Resistance. Equipment: Ammeter power pack crocodile clips Measuring cylinder, ice and water Bunsen burner, tripod and gauze Voltmeter Thermometer -Set up a standard circuit, with an ammeter measuring current in amps and a voltmeter measuring voltage in volts. -place the crocodile clips in beakers of varying temperatures (using ice, water and bunsen burners to achieve them), ranging from 0 �C to 80�C. ...read more.

Middle

Our results indicate, on the whole, that as the temperature increases, so does the current in amps (directly proportional). As the current increases, the resistance decreases, because we are dividing the voltage by a larger number. We can conclude that as the temperature increases, the resistance decreases (inversely proportional) ...read more.

Conclusion

So as the particles vibrate, they obstruct the electrons that are trying to pass through more frequently and so a greater resistance is built up. So how does the temperature have such an effect on the resistance? The heating effect of the current makes the atoms in the wire vibrate more, due to this the atoms make more contact with the electrons making it more difficult for the current to pass through the wire so the resistance increases. ...read more.

The above preview is unformatted text

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

# Related AS and A Level Electrical & Thermal Physics essays

1. ## Investigate how the temperature affects the resistance of a thermistor.

reaches a certain temperature (probably just before it becomes so hot that it is a risk) it can automatically shut down or trigger off a fan that can be power to cool it down again to a safe temperature. Evaluation: Even though during my experiment I didn't have any problems

2. ## Investigating the effect of 'length' on the resistance of a wire

a wider range) such as 0-200cm. * I would also take readings at every 5cm. * To make sure that the wire has returned to its original temperature, I would leave a five minute gap between each two readings.

1. ## Investigating how temperature affects the resistance in a wire

k*the temperature (where k = the gradient). Apparatus: -5 lengths of standard insulated wire approximately 40 cm in length (used to connect the batteries to the multimeters and the steel) -Two digital multimeters (used to measure the volts and the amps)

2. ## A2 Viscosity investigation

is viscosity and v is velocity) Weight=mg And up thrust is equal to the weight of liquid displaced (In this case the syrup) The weight of the syrup displaced can be found by using the density and then multiplying this by the volume of the ball bearing and by gravity this gives the equation, Up thrust=?r3?g(where ?

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