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Does the direction of emf provided by the battery depend on the direction of the current flow through the battery?
Wiki User
∙ 12y ago
Within a source of emf ( like a battery) a chemical reaction occurs which moves the mobile charge carriers from a region where they have low electric potential energy to a region where they have a higher electric potential energy.(like water raised by a pump from lower gravitational potential to a higher gravitaional potential at the cost of electricity etc).
However, in the circuit when connected to a load, the current flows from higher potential to lower potential (like water flows from the water tank at the roof to the tape in the kitchen).
To summarize, the electric current flows from negative to the positive terminal in the outer load circuit while in the battery (source of emf) the current by positive ions flows from negative to the positive terminal at the cost of energy. Therefore, the direction of emf provided by a battery doesn’t depend on the direction of the current flowing through the battery.
Asad khan
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Is the direction of current through a battery always from negative to positive on the terminals?
Conventional current flow is from positive to negative. Electron flow is from negative to positive
A resistance of 10 ohms is placed across a 9 volt battery what current flows through the battery?
No current flows through the battery. There is a current through the external circuit. I = E/R = 9/10 = 0.9 amperes.
How do you know which direction current flows in?
We always visualize, and assume, current to be flowing from the positive terminal of the power supply or battery to the negative terminal, through the conducting path provided by everything that's connected between them. In reality, though, the thing that's doing the actual physical flowing is huge numbers of electrons, which happen to carry negative charge. So the actual physical flow is in the opposite direction.
What is current in the battery called?
A battery contains a charge of electrons. When these electrons leave the battery and travel through a circuit that is described as current.
What is an energy source for a DC current?
An energy source commonly used for DC current is a battery. A battery generates direct current through a chemical reaction, providing a steady flow of electrons in one direction. Other sources such as solar panels can also produce DC current by converting sunlight into electrical energy.
What causes a posite current in a battery?
A electrical from a battery is the flow of elecrons through a circuit in the opposite dirrection to the current flow. This current flow also happens inside the battery between the plates.
What is an electric current flow diagram?
This good? the current flows through the battery and light?
Current that reverses direction in the regular pattern is called?
This is known as a direct current or DC. The two major types of currents are AC (alternating current) and DC (direct current). In AC the charges move back and forth, but in DC the charges flow in JUST ONE DIRECTION. Due to this characteristic it will not reverse direction like AC can.
Why does a circuit stop working when you remove the battery?
The battery is the power source of the circuit. It supplies current to the circuit and the circuit is simply a path for the current to follow. When you remove the current (battery), the path still exists but there is no current going through it.
What is charged by having a one way current flow through it?
A battery is charged by having a DC current flow through it.
Is it the positive or negative that powers the head lights?
It's the complete circuit, allowing current to flow from one side of the battery to the other, going through the headlights on the way. For light bulbs, it doesn't make any difference which direction it goes through. You could swap the connections to the battery, or the connections to the lights, and they would work just as well. Light bulbs don't care which direction the current flows through them. But there are some other electrical devices on the car that might, so don't try this. Just please take my word for it.
How does a battery act like a pump?
a battery acts like a pump, pushing the current through the wire !
