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Does the direction of emf provided by the battery depend on the direction of the current flow through the battery?
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.
What else can I help you with?
What is the reason why the current from a battery is always constant?
The current from a battery is always constant because the voltage provided by the battery remains steady, which results in a consistent flow of electrons through the circuit.
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
What happens to the total current provided by the battery as more bulbs are added to a parallel circuit?
The total current provided by the battery increases as more bulbs are added to a parallel circuit. This is because each branch in a parallel circuit receives the full voltage of the battery, leading to more current flowing through each branch as more loads (bulbs) are added.
What is the current through the battery?
The current through the battery is the flow of electric charge, measured in amperes (A), that is being supplied by the battery at a given moment.
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.
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.
What particles run through circuits attached to a battery?
Electrons are the particles that run through circuits attached to a battery. When a circuit is connected to a battery, the voltage difference provided by the battery allows electrons to flow from the negative terminal to the positive terminal, creating an electric current.
Why does a battery supply direct current?
A battery supplies direct current (DC) because it produces a constant flow of electrons in one direction within the circuit. This is achieved through a chemical reaction that establishes a potential difference. In contrast, alternating current (AC) changes direction periodically, making it more suitable for long-distance power transmission.
What has to happen for the bulb to light up?
To light up, the bulb needs an electrical current flowing through it. This current is typically provided by connecting the bulb to a power source, such as a battery or outlet. Once the current flows through the bulb's filament, it heats up and produces light.
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.
An electric current flowing through a wire gives rise to a magnetic field whose direction depends upon what of the current?
The direction of the magnetic field produced by an electric current flowing through a wire is dependent on the direction of the current. The right-hand rule can be used to determine the direction of the magnetic field relative to the direction of the current flow.
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.
