You will need

- - tools for cutting wire;
- - table of specific resistances;
- - additional resistance.

Instruction

1

Identify the substance from which made the guide. Find the specific

**resistance**using the table. Lower**the resistance**of the conductor having the same conductor, only of substances, the specific**resistance**is lower. How many times will smaller this value is the number of times decreases**the resistance**of the conductor.2

If possible, reduce the length of the conduit, which is used in the circuit. Resistance is directly proportional to conductor length. If you shorten the conductor in the n times, then

**the resistance**decreases by the same factor.3

Increase the cross-sectional area of the conductor. Install conduit with a large cross-section or connect several conductors in parallel in the bundle of wires. How many times will increase the cross-sectional area of the conductor, as many times decreases

**the resistance**of the conductor.4

You can combine these methods. For example, to reduce

**the resistance**of the conductor 16 times, replaced it with a conductor, specific**resistance**of less than 2 times reduce 2 times its length and cross-sectional area 4 times.5

To reduce

**resistance**on the part of the chain, attach it in parallel to another**resistance**, the value of which calculate. Note that when parallel connection,**the resistance**of circuit is always less than the smallest resistance in the parallel branches. Calculate the required**resistance**that must be attached in parallel. To do this, measure**the resistance**of the circuit R1. Determine the**resistance**, which should it be – R. then, determine**the resistance**R2, which should be attached to the resistance R1 in parallel. To do this, find the product of the resistances R and R1 and divide by the difference between R1 and R (R2 = R • R1 / (R1 - R)). Note that condition R1 is always larger than R.