Criteria Multimeter

1. Specificity of sensitivity, determined by the detainee / resistance (resistance) divided by voltage, for example 20 kΩ / v for DCV and 8 kΩ / v for ACV. (20 kΩ / v → I = E / R = 1 / 20,000 = ½ x 10- 4 A = 0,05mA = 50 uA). Multimeter uses a current of 50 ...

Read More »

Configuring Multimeter

Multimeter described in this book is Multimeter Analog that use rotating coils to move the needle board scale. Multimeter is widely used because they are relatively affordable. If the Digital Multimeter direct measurement results can be read in the form of numbers that appear on the screen display, the analog multimeter measurement results read by the appointment of a needle ...

Read More »

Kontaktor Magnet

Kontaktor magnet atau sakelar magnet adalah sakelar yang bekerja berdasarkan kemagnetan, artinya saklar ini dapat bekerja apabila ada gaya kemagnetan. Magnet berfungsi sebagai penarik dan pelepas kontak-kontak. Sebuah kontaktor harus mampu mengalirkan dan memutuskan arus listrik dalam keadaan normal. Arus listrik yang mengalir secara normal adalah arus listrik yang mengalir selama pemutusan tidak terjadi. Kumparan magnet kontaktor (coil) dapat dirancang ...

Read More »

Direction Flow

In the daily life, you will often find the electrical circuit, the electrical circuit ranging from the simple to the very complex circuit. Have you observed the electrical circuits in a flashlight, radio, or television? Have you ever wondered why a flashlight, radio, and television can function? Examine the electrical substation image below. Large cables connect one place to another ...

Read More »

Electric Current

Electricity has been around since the existence of this universe, even when life on this planet does not exist. Very strong lightning bolts can light up the sky. Lightning is a natural phenomenon that indicates the existence of electrical energy. In line with the development of life, electricity became a very important part in human life. Almost all equipment used ...

Read More »

Electrical Power

Electrical energy is useful to us because it can be converted into other forms of energy. In the power tools such as electric heaters, electric stoves, and air conditioning, electrical energy is converted into heat energy in the wire barriers known as “heating elements”. Then, in a lot of light (Figure 7.4), a small wire filament becomes so hot that ...

Read More »