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

Solenoid Investigation

Extracts from this document...

Introduction

Oxford Cambridge and RSA Examinations

Advanced Subsidiary GCE

PHYSICS A (2823/03/PLAN)

Practical Test (Part A - Planning Exercise)

Research/Theory

“The moment of a (turning) force about a given pivot is defined as follows.

Moment of a force = force x perpendicular distance from the pivot to the line of action of the force. The unit of moment is the Newton metre (Nm).”1

Also, “The principle of moments states that for any body in equilibrium, the sum of the clockwise moments about any pivot must equal the sum of the anticlockwise moments about that pivot.”1(Fig. 1)

image00.pngimage01.png

image08.pngimage15.png

image21.pngimage29.png

image39.png

“Inside a solenoid, the magnetic field is uniform and its strength can be increased by increasing the current.”2

image50.png

The principle of moments is used to find attractive force between the magnet and the solenoid.

The unknown force is the one produced with the bar magnet and solenoid. By using the equation of equilibrium previously given, the unknown force can be calculated provided that the system is in equilibrium:

F1 x d1 = F2 x d2

image59.pngimage69.png

F1 = (F2 x d2)

...read more.

Middle

image20.png

image26.pngimage25.pngimage24.png

image28.pngimage27.png

image30.pngimage31.png

image34.pngimage33.pngimage35.pngimage32.png

image37.pngimage36.png

image38.pngimage40.png

image42.pngimage41.png

image43.pngimage44.pngimage45.png

image46.pngimage47.png

image48.pngimage49.png

image51.pngimage52.png

image47.pngimage53.pngimage53.png

Preliminary Investigationimage54.png

The first aspect that was investigated was the direction of the current (Fig.5). It must be noted that “There is an attractive force”.

image55.pngimage56.png

The magnitude of the current that will be used through the solenoid was then investigated. When the resistance of the variable resistor was at its smallest the current through the solenoid was 3.42A with a 2V supply (a 2V supply was found adequate as higher e.m.f. was found to trip the power supply). However, at this current flow, it was found that the solenoid would heat up very quickly and to a high temperature. By adjusting the variable resistor to a higher resistance it was found that when set so the current on the ammeter was 0.5A, the solenoid did not heat too much or heat too quickly therefore the resistance of the solenoid would not be affected greatly.image57.pngimage58.png

image60.png

The only meter used was an ammeter. It is

...read more.

Conclusion

x, to 0cm.image66.pngTurn the power supply on. Set the variable resistor so the current reading on the ammeter reads 0.5ABalance the system by adding 10gram masses/plastacine to the other end. Check this equilibrium by very lightly resting the spirit level on top Metre rule 1, as shown in the Fig. 4.Turn the power supply off and remove the mass. Measure the mass on scales and take down the reading.Repeat steps 2) to 5) twice.Repeat steps 2) to 6) for the following values of x: 2cm, 4cm, 6cm, 8cm, 10cm and 12cm. This will provide enough readings for an accurate graph to be drawn.

Prediction

image68.pngimage67.png

image35.png

Results Table

  • F2 can be calculated by m x 9.81 = F2.
  • F1 can be calculated by (F2 x d2) / d1 = F1.

Reading 1

Distance, x/ m

Mass, m/ grams

Force, F2/ Newtons

Force, F1/ Newtons

0.00

0.02

0.04

0.06

0.08

0.10

0.12

Reading 2

Distance, x/ m

Mass, m/ grams

Force, F2/ Newtons

Force, F1/ Newtons

0.00

0.02

0.04

0.06

0.08

0.10

0.12

Reading 3

Distance, x/ m

Mass, m/ grams

Force, F2/ Newtons

Force, F1/ Newtons

0.00

0.02

0.04

0.06

0.08

0.10

0.12

Average

Distance, x/ m

Mass, m/ grams

Force, F2/ Newtons

Force, F1/ Newtons

0.00

0.02

0.04

0.06

0.08

0.10

0.12

Bibliography

  1. New Understanding Physics For Advanced Level by Jim Breithaupt (Stanley Thornes).
  2. Physics 1 by David Sang, Keith Gibbs & Robert Hutchings (Cambridge OCR).

...read more.

This student written piece of work is one of many that can be found in our AS and A Level Mechanics & Radioactivity 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 Mechanics & Radioactivity essays

  1. Marked by a teacher

    AS OCR B Advancing Physics Coursework - Making Sense of Data

    4 star(s)

    judged to give a line with a more representative gradient), and vice versa. The difference between the gradients of each of these lines is the error associated with my calculated figure of acceleration. (4.41 - 2.26) / (0.43 - 0.24)

  2. Peer reviewed

    Catapult Investigation

    3 star(s)

    We discounted totally inaccurate results. Our experiment that we planned needed to be fair in order to get an accurate set of results. In order to do this we kept strict precautions on some factors. They were; 1. The same weight fired. Different weights could cause different results.

  1. Investigating the factors affecting tensile strength of human hair.

    Graph 12 shows the modified stresses and strains for blonde hair. This graph does not show values of stress and strain decreasing. Graph 13 shows the modified stresses and strains for ginger hair. This graph has changed a lot. It reads much clearer.

  2. Helicopter Investigation

    It shows us where to cut and fold and what measurements are involved. Diagram 1.2 The diagram, which has been drawn above, has not been drawn to scale. Once I draw out the drawing of the paper helicopter on the A4 sheet of paper, carefully done using a ruler of course.

  1. OCR B Advancing Physics Physics Practical Investigation Coursework Investigating Simple Harmonic Oscillations

    caused the belief that the system would then be damped to a critical point, or possibly over-damped. This would result in near impossible measurements of frequency as the frequencies were already very low with water. The spring constant, k, could be changed and would affect the energy and therefore the whole oscillation of the system.

  2. Pulleys, forces and the principle of moments

    force at the end of the blades whereas the cloth is cut in between the sharp edges of the blades. When we are pushing a screw inside a block of wood, we are using a screw driver, the force is therefore being applied to the handle of the screw driver,

  1. Use of technology in a hospital radiology department. The department of imaging is one ...

    A large number of cancer patient are being treated as day cases, the number has been increased by 10 per cent in the past year. According to annual review of the hospital barest cancer treatment has improved patient chance of recovery, nearly 150 patient have already benefited from the approach,

  2. The Physics of an Atomic Bomb

    There are four main problems that must be taken care of for an atomic bomb to explode. They are all related with creating a fission chain reaction: The fissionable material must be kept in a subcritical state before detonation. The fissionable material must be brought into a supercritical state while keeping it free of neutrons.

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