# Advice 1: How to increase the amperage

Sometimes it is necessary to increase the power flowing in an electric circuit current. This article will discuss the main ways to increase the current without the use of complex devices.
You will need
• Ammeter
Instruction
1
According to Ohm's law for electric circuits of a direct current:U=IR, where:U - the value supplied to the electric circuit,
R - impedance of an electric circuit,
I - the value flowing through the electric circuit to determine the amperage you divide the voltage applied to the circuit at its full resistance. I=U/RСоответственно, in order to increase the amperage, you can increase input circuit voltage or decrease the resistance.The amperage will increase if you increase the voltage. Increasing the current will increase in proportion to the voltage. For example, if the circuit a resistance of 10 Ω was connected to the standard battery voltage of 1.5 Volts, the current through it the current was:
A 1.5/10=0.15 A (Amperes). When connected to this circuit even with one power supply At 1.5 V the total voltage will be 3 V, and flowing in an electrical circuit current will increase to 0.3 A.
The connection is made sequentially , that is, plus a single battery is attached to the minus of the other. Thus, by connecting sequentially a sufficient number of power sources, it is possible to obtain the required voltage and provide the current flow needed power. United in one chain, several sources of stress are referred to as battery elements. In everyday life, such design is commonly referred to as "batteries (even if the power source consists of only one element).In practice, however, the increase of amperage may differ slightly from the estimated (proportional increase in voltage). This is mainly due to additional heating of the conductors of the circuit, occurring when increasing the passing current on them. However, as a rule, there is an increase in resistance which reduces the current.In addition, increasing the load on the electric circuit can lead to "burnout or even fire. Especially need to be careful at operation of household devices that can operate only at a fixed voltage.
2
If you reduce the impedance of the electric circuit, the amperage will also increase. According to Ohm's law the current strength increase will be proportional to the decrease in resistance. For example, if the supply voltage was 1.5 V, and the resistance was 10 Ω, then the chain passed electric current value of 0.15 A. If the resistance of the circuit to reduce in two times (to make equal 5 Ohms), then passing through the circuit, the current will increase twice and will amount to 0.3 amperes.An extreme case of reducing the resistance of the load is a short circuit where the load resistance is practically zero. Infinite current at the same time, of course, does not occur because the circuit has an internal resistance of the power source. More significant drag reduction can be achieved, if strongly cooled conductor. This effect of superconductivity based obtaining currents of great power.
3
To improve the AC current used various electronic devices, mainly transformers are used, for example, welding. AC power also increases with decreasing frequency (as a result of the surface effect decreases the resistance of the circuit).If an AC circuit contains active resistance, the amperage will increase with increasing capacitance and reducing inductance coils (solenoids). If the chains are only tanks (capacitors), the current will increase with increasing frequency. If the circuit consists of inductors, the current will increase with decreasing frequency of the current.

# Advice 2 : How to increase the amperage

According to Ohm's law, increasing the current in the circuit is possible if at least one of two conditions: increase voltage or decrease resistance. In the first case, adjust the source current for another with more electromotive force; in the latter, pick up the guides with less resistance.
You will need
• the usual tester and tables to determine the specific resistance of substances.
Instruction
1
According to Ohm's law, on the part of the chain the strength of the current depends on two variables. It is directly proportional to the voltage at that location and inversely proportional to its resistance. Total dependence is described by the equation which was derived directly from Ohm's law I=U*S/(ρ*l).
2
Assemble the electric circuit which includes a source of current, wire and consumer of electricity. As the source DC use a rectifier with adjustable voltage. Connect the circuit to a source after setting it the tester is consistently the consumer that is configured to measure the force of the current. Increasing the EMF of the source current, take readings of the tester with which it can be concluded that by increasing the voltage on the circuit the strength of current in it will increase in proportion.
3
The second method of increasing the strength of the current - reducing resistance on the circuit. For this special table to determine the resistivity of the site. To do this, please find out in advance what material is made the conductors. To increase the power current, install conductors with smaller resistivity. The smaller this value, the greater the strength of the current in this area.
4
If there are no other conductors, change the sizes those are available. Increase the area of their cross section parallel them install the same conductors. If the current flows through one strand of wire parallel install several wires. How many times will increase the sectional area of the wire, so many times will increase the current. If possible, shorten the length of the wire used. How many times will reduce the length of conductors, number of times to increase the strength of the current.
5
Ways of increasing the strength of the current can be combined. For example, if you increase the cross-sectional area in 2 times, decrease the length of conductors in 1.5 times, and the EMF of the source current to increase to 3 times, will gain increasing force of the current you 9 times.
Search