Observations show that if to place the conductor with current in magnetic field, then it will begin to move. It means that it is affected by a certain force. It is also Ampere force. As it is necessary to have for its emergence the conductor, magnetic field and electric current, change of parameters of these sizes also will allow to increase Ampere force.
It is required to you
- - conductor;
- - current source;
- - magnet (constant or electro).
Instruction
1. The conductor with current in magnetic field is affected by force equal to performing magnetic induction of magnetic field of B, force of the current proceeding on the conductor of I, its lengths of l and sine of the angle α between a vector of magnetic induction of the field and the direction of current in the conductor of F=B∙I∙l∙sin(α).
2. If a corner between lines of magnetic induction and the direction of current in the conductor sharp or stupid, orient the conductor or the field so that this corner became straight lines, that is between a vector of magnetic induction and current there has to be a right angle equal 90º. Then sin(α)=1, and this maximum value for this function.
3. Increase the Ampere force operating on the conductor, having increased value of magnetic induction of the field in which it is located. For this purpose take more powerful magnet. Use an electromagnet which allows to receive magnetic field of various intensity. Increase current in its winding, and the inductance of magnetic field will begin to increase. Ampere force will increase in proportion to magnetic induction of magnetic field, for example, having increased it 2 times, receive increase in force too twice.
4. Ampere force depends at most current in the conductor. Attach the conductor to a current source with changeable EMF. Increase current in the conductor due to increase in tension on a current source, or replace the conductor with another, with the same geometrical sizes, but with a smaller specific resistance. For example, replace the aluminum conductor with copper. At the same time it has to have the same cross-sectional area and length. Increase in Ampere force will be in direct ratio to increase to current in the conductor.
5. For increase in value of Ampere force increase length of the conductor which is in magnetic field. At the same time surely consider that at the same time current in proportion will decrease therefore simple lengthening of effect will not give, at the same time bring value of current in the conductor to initial, increasing tension on a source.