أكاديميا - كولنز - معاجم الجيب العلمية - الفيزياء - انكليزي - فرنسي - عربي الحرف ٤_ f

Academia - Collins - Pocket Scientific Dictionaries - Physics - English - French - Arabic Letter 4_ F


fuse
fusible f

Sahira. An old word that carries the meaning of melt (magma). The magma must melt in the electrical circuit. Consequently, the current is cut off if the current is very large, which happens as a result of a defect or overloading the network. Look. conduction, electrical and three-pin plug

Almost all conductors resist the flow of charge. This involves a transfer of energy that results in a rise in temperature. This is called the heating current effect.

There are household fuses with different ratings, and one must choose the appropriate rating in each case using the ratio 250/I = P, which is the required power in watts, and you must choose a fuse with a rating slightly higher than 1.

We often use automatic circuit breakers instead of fuses for currents exceeding 13 amps. The user can quickly reconnect these circuit breakers after finding the fault. Fuse protects the circuit wires, but it does not protect us. When replacing the fuse, the power must be cut off. See earth. The fuse must be placed in the live wire. To calculate the required caliber of melting pot, the power used is divided by the voltage:

I = P/V

The fuse rating must be higher when there is a motor in the circuit, provided that it does not exceed the current rating of the circuit wires.


fusion
fusion f

Fusion. Old name for melting (see state change). But today we use the word in the sense of combining two or more light atomic nuclei to create a single, larger nucleus. In each case there is a very large mass-energy transfer.

Fusion is used in the hydrogen atom bomb, and effective methods have not yet been found to control fusion and produce clean, inexpensive power. Much of the energy of stars comes through fusion. Below we list a simple fusion reaction between the two nuclei of deuterium (heavy hydrogen):

2/1H + 2/1H > 3/2H + 1/0n + energy

The energy is transferred to the movement of modern particles
Morphology.