1 As well as not punching someone in the chin, do not punch them in the temple, this, if punched hard enough can kill someone instantly. 2  Aiming for the head and skull area could break your knuckles. 3  As with any martial arts technique, showing discipline with regard to one's knowledge is a truer measure of one's skill. If you throw a jab and it doesn't connect, you know you need to move closer in order to throw a punch that hits the target. 2  Keep your combatant away from you. 3  Throwing a jab, or a series of jabs, is a way of keeping your combatant from getting too close to you.
Electric current can be either direct current (DC) or alternating current (AC). With DC, the direction of flow is constant. With AC, the direction of flow changes rapidl â¦ y from one direction to the other. + 19 others found this useful.
There is, in fact, just one electric current in the circuit while there are three (or more) different species of charge carriers along the circuit's path: (1) electrons in the metal conductors, (2) positive sodium ions in the salt water, (3) negative chlorine ions in the salt water, and (4+) if the voltage source is a battery, ions in the battery's electrolyte.