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In an electrochemical cell, the charge flows from the anode (where oxidation occurs) to the cathode (where reduction occurs) through an external circuit. At the anode, electrons are lost during oxidation reactions, while at the cathode, electrons are gained during reduction reactions. The flow of charge through the external circuit is driven by the potential difference created by the redox reactions happening at the electrodes.
The amount of charge that flows through the switch after it is closed depends on the electrical circuit and the voltage applied. The charge flow is measured in coulombs.
When a current flows through a wire, the charge within the wire does not change. The charge carriers (usually electrons) move along the wire, creating an electric current, but the total charge remains constant.
The measure of electric charge is the coulomb (C). It is defined as the amount of charge that flows through a circuit when a current of 1 ampere flows for 1 second.
Dendrites receive stimuli from other neurons. Charge is carried by ions. The direction of the charge flows in is determined by the electrochemical potential difference across the membrane and the properties of membrane ion channels.
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Energy is often released in the form of hydrogen ions moving down an electrochemical gradient, such in chloroplasts or mitochondria.
When electricity current flows through a wire, the charge of the wire does not change. The flow of electrons creates an electrical current, but the total charge of the wire remains constant.
Ions are the particles that move when current flows through a solution. They carry electric charge as they migrate towards the oppositely charged electrode.
An electric charge flows through a wire when there is a closed circuit that allows the charge to move freely. This requires a power source, such as a battery, and a complete path for the charge to travel along, like a wire or conductor.
Electrons are the particles that move when electricity flows through a circuit. They carry a negative charge and flow from the negative terminal of the power source to the positive terminal.