Sign In
Ask Question
Geovanni Morse
Physics
20 March, 18:27
Explain how a diode is like a one way street
+2
Answers (
1
)
Abdiel Mayo
20 March, 18:38
0
The diode is like a one-way street because it allows current to flow to only one direction in the circuit.
In fact, a diode consists of a p-n junction, with a n-type region with excess of electrons and a p-type region with excess of holes. Both ends are connected to two terminals of a battery, so a voltage difference can be applied across the junction.
When no voltage is applied, electrons from the n-region combine with the holes from the p-region in the area near the junction, creating the so-called depleting region, which acts as an insulating area.
To get rid of this depleting area, the n-type region must be connected to the negative terminal of the battery while the p-type region to the positive terminal of the battery. This way, electrons from the n-region are repelled from the negative terminal and start to flow towards the positive terminal (and the holes do the same in the opposite direction), creating a net current flowing through the depletion region. Instead, when the n-type region is connected to the positive terminal of the battery, the electrons are attracted by that terminal, so they do not flow through the depletion region (and same for the holes in the p-region) and so there is no net current across the junction. Therefore, current in a diode flows only in one direction.
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question 👍
“Explain how a diode is like a one way street ...”
in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
When you look ahead while driving, it is best to: a. look beyond the car ahead of you b. look only at the back of the car ahead of you c. focus on the right side of your lane?
Answers (1)
Differentiate between gravity and gravitation
Answers (2)
The frequency of a wave is 20 Hz. If the speed of the wave is 4 m/s, what is the wavelength?
Answers (1)
What is the change in momentum of a 0.18 kg arrow that is traveling at 100 m/s and is stopped by a hay bale in 2 seconds?
Answers (1)
If sounds produced by the human vocal cords are approximated as waves on a string fixed at both ends, and the average length of a vocal cord is 15 mm, what is the fundamental frequency of the sound?
Answers (1)
New Questions in Physics
Who wrote the mayflower compact?
Answers (1)
In the formula for specific heat, which quantity is measured in units of J/g•°C? a - c b - Q c - T d - m
Answers (1)
The acceleration of an object is proportional to which of the following? the mass the energy of the object the inverse of the mass the inverse of the force applied
Answers (1)
Suppose you squeeze a sponge into a small ball. does the mass of the sponge change? Does it's density change?
Answers (2)
A solid round bar with diameter of 2-in has a groove cut to a diameter of 1.8-in, with a groove radius of 0.1-in. the bar is not rotating.
Answers (1)
Home
»
Physics
» Explain how a diode is like a one way street
Sign In
Sign Up
Forgot Password?