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How much work is required to carry an electron from the positive terminal of a 4 V battery to the negative terminal?
Wiki User
∙ 8y ago
work done=ev.
1electron=1.6x10^-19
therefore, 1.6x10^-19 X 12
The answer is 1.9x10^-19
Wiki User
∙ 11y ago
Waseem Khan kaloun
As
W=qv
So, w=(-1.6×10^-19)(-12)
(here q is negative because its about electron we know that electrons and protons have same magnitude and apposite signs)
Therefore w=1.9×10^-18
Wiki User
∙ 8y agoit require five process
Anonymous
1.6×10^-19
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Why is it necessary that an electron returns to the positive terminal of the battery each time another electron leaves the negative terminal?
Electrons are negatively charged, and so are attracted to the positive end of a battery and repelled by the negative end. So when the battery is hooked up to something that lets the electrons flow through it, they flow from negative to positive.
How do you know positive and negative terminals?
Look for a + by the positive terminal and a - by the negative terminal, or red for positive, black for negative. Some batteries have the positive terminal protruding and the negative terminal flat. Or you can get a meter that will tell you which is which,
In a 1.5V battery taking the negative terminal as 0.0V what is the electrical potential energy of an electron leaving the negative battery terminal?
Somebody is trying a trick question! The electron that comes out of the negative terminal has zero potential energy. With respect to the positive terminal it has -1.5V of electrical potential energy, and so does every other electron at 0.0V whether or not they came out of the battery.
What terminal does electrons flow from in a dry cell?
That is a good way to run the cell down quickly. Electrons are negatively charged so they always move from the positive terminal towards the negative. Each electron carries a charge of 1.602 x 10-19 coulombs so 1 coulomb (1 amp for 1 second) carries 6.24 x 1018 electrons.
What happens when you inadvertanly crossed the positive battery terminal from a negative to a positive and a positive to a negative.?
What happens when you inadvertently crossed the positive battery terminal from a negative to a positive and a positive to a negative.?Read more: What_happens_when_you_inadvertanly_crossed_the_positive_battery_terminal_from_a_negative_to_a_positive_and_a_positive_to_a_negative.
What is positive about batteries?
One terminal is positive and the other terminal is negative. The positive terminal is slightly larger.
What does the negative terminal of a battery have?
The negative terminal of a battery has a - sign and positive terminal has a + sign.
Does the positive end of a battery go to the positive or negative end of the terminal?
The positive end of a battery goes to the positive end of the terminal. In retro spec, the negative end of a battery goes to the negative end of the terminal.
Do electrons flow from the positive to the negative terminal of a wet cell?
Electrons have a negative charge. For that reason, electrons will always flow in the opposite direction of the current, which flows from positive to negative. Electrons will therefore move from a negative terminal to a positive terminal when we look at the load on a cell. Within the cell, the electrons will flow from the positive terminal to the negative terminal.
What is the difference between a positive terminal and negative terminal of a battery?
The positive + terminal is slightly larger.
What is the positive terminal of a diode known as?
It is called the positive + terminal or post, just like you list. Electrons flow for the negative - to the + terminal contrary to popular belief.Another AnswerAs electrons flow through the external circuit from anode (negative terminal) to the cathode (positive terminal) , then the answer is 'cathode'.
Why electrons flow in negative to positive direction?
Electrons are negatively charged particles. The reason the negative side of your D battery is negative is because that's where the free electrons are. The positive terminal is starved or has a deficit of electrons. The negatively charged electrons naturally want to fill the 'holes', in atoms lacking an electron on the positive side. Thus electron flow is from negative to positive. Conventional current flow assumes that current flows out of the positive terminal, through the circuit and into the negative terminal of the source. This was the convention chosen during the discovery of electricity. They were wrong!
