To lift tension on the site of an electrical circuit it is necessary to reduce its resistance in so many time when it is necessary to increase tension. It is possible to raise value of tension in an electrical circuit in one more way. For this purpose increase energy of electric field in the conductor, and attach to a chain a current source with the bigger electromotive force (EMF).
It is required to you
- voltmeter
Instruction
1. To lift tension on the site of a chain, change conductors for others, with a smaller resistance. How much reduce resistance, in so many time tension will increase. It can be done, if resistance of conductors is in advance known. If is not present, do the following steps. Learn material of which conductors on the site of a chain are made. Then, by means of special tables learn its specific resistance and pick up other material which specific resistance is less in the necessary number of times. Take conductors from carried more out material and establish instead of old – tension will increase.
2. If the necessary material is not, find an opportunity to reduce length of conductors on the site of a chain. How much it will be possible to reduce length of conductors, in so many time tension will increase. If this option does not approach, increase the area of internal section of conductors, having picked up the corresponding wires. If there are no suitable wires, take conductors what are available, and in parallel mount them in a chain as one conductor. Wires has to be so much how much it is necessary to increase tension. As a result both the cross section of conductors, and tension will increase in the necessary number of times. For example, to lift tension use in a chain three conductors instead of one three times.
3. To increase energy of electric field in the conductor increase the EMF of a source of current to which the conductor is attached. If in a current source it is regulated, turn the lever or press the corresponding button. If the EMF of a source is not regulated, connect a chain to more powerful source, from bigger EMF. In a case with accumulators or galvanic cells (batteries) create the battery, having connected them consistently heteronymic poles. How much EMF will increase, on so many time tension will rise.