How to reduce the current?
Many people are interested in how to reduce the current in the electrical circuit. For this you need to know some laws of physics. Initially, it is necessary to determine the exact change in current. To do this, using the Ohm's law, determine the parameters of the circuit, and also calculate the required resistance.
Before you begin work on reducing the current in the electrical circuit, you need to take care of the safety of the workplace. To do this, you must make sure that the place is completely protected from electric shock. In addition, it is important to remember that before starting work it is necessary to de-energize all electrical circuits.
Since the current strength depends on two parameters — resistance and voltage — there are several simple ways to reduce this value. The most common and simple method is to add additional resistance to the network or connect any device to the open circuit that will provide this function.
To measure the required performance, you will need a multimeter. The voltage applied to the electrical circuit must be disconnected. To do this, simply switch the switch to the desired mode. After the device indicator or the multimeter indicates that the network is de-energized, you are ready to go. Now you should determine the resistance that provides the input device. By switching the multimeter to ohmmeter mode, you can find out this parameter. If you do not have the necessary equipment, then you can find out the resistance by adding all the resistance indicators in this circuit.
Calculation of the necessary resistance
To find out what resistance you need to add to the circuit to reduce the current, you should use Ohm's law. We divide the available voltage in the circuit by the required amount of current. Further, from the result obtained we subtract the resistance that was measured earlier. The resulting value will be the necessary resistance that must be added to the circuit to reduce the amperage.
Now, before reducing the current in the circuit, it is necessary to select a special element with the calculated resistance. Pre-prepared resistor or multiple incandescent bulbs will do.After that it is necessary to break the electric circuit. This can be done with pliers or a sharp knife. Cut one of the wires, which is responsible for the power, then we clean the resulting wire ends. Stripped wires must be connected to the element with the necessary resistance and ensure the safety of the structure. After that, you can energize and check the performance of the circuit.