2006-09-01 23:13:15 · 9 answers · asked by Ravitej 2 in Science & Mathematics ➔ Engineering
In electronics, a diode is a component that restricts the direction of movement of charge carriers. Essentially, it allows an electric current to flow in one direction, but blocks it in the opposite direction. Thus, the diode can be thought of as an electronic version of a check valve. Circuits that require current flow in only one direction will typically include one or more diodes in the circuit design.
2006-09-02 04:33:32 · answer #1 · answered by maya 3 · 0⤊ 0⤋
Yes, a diode has a much higher resistance in one direction than the other.
If you connect 2 diodes together (nose to nose) , you have a transistor. Applying a current to the center (common) connection can change the way the diodes operate and the circuit can operate as a switch. It's better with an actual transistor.
2006-09-02 06:22:18 · answer #2 · answered by Henry 5 · 0⤊ 0⤋
A diode allows current to flow in one direction, but not the other.
2006-09-02 06:15:24 · answer #3 · answered by JeffE 6 · 0⤊ 0⤋
It's like a "Check Valve", it will only let the current flow in one direction. There is a "diode" on a solar panel, it prevents the battery from reversing and discharging at night
2006-09-02 06:23:33 · answer #4 · answered by Anonymous · 0⤊ 0⤋
since a diode conducts only when +ve is to p side and -ve is to n side( aka forward biasing ), we may use a diode as a switch by exploiting this property.. ex: a full wave or half wave rectifier uses this principle.. but we use ac in the case of a rectifier ..
2006-09-02 12:59:33 · answer #5 · answered by monkeybrain 1 · 0⤊ 0⤋
diode makes AC current into DC current
2006-09-02 07:19:28 · answer #6 · answered by eshaghi_2006 3 · 0⤊ 0⤋
diode makes the current to flow in unidirectional.it can prevent the overflow of current.
2006-09-02 06:26:40 · answer #7 · answered by jaha_jaha555 1 · 0⤊ 0⤋
dear friend,
as u know diode conducts only in forward bias condition,so when the applied voltage is forward biasing it closes and acts as a switch,for other conditions it remains open,thus acting as aswitch
2006-09-02 06:22:41 · answer #8 · answered by Anonymous · 0⤊ 0⤋
BASICALLY DIODE PERMIT ONLY ONE DIRECTION OF CURRENT
2006-09-02 06:16:48 · answer #9 · answered by linesh r 2 · 0⤊ 0⤋