Ohm's Law

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  1. 3. A theoretical model used to describe the flow of positive charge carriers in a circuit, opposite to the actual flow of electrons.
  2. 6. An electrochemical cell where the electrolyte is immobilized as a paste, gel, or absorbed in a solid matrix, eliminating the need for a liquid electrolyte. Common examples include alkaline batteries used in household devices.
  3. 7. The rate at which electrical energy is transferred or converted into another form of energy, such as heat, light, or mechanical energy. It is typically measured in watts (W) and can be calculated using the formula: P = V*I
  4. 10. The opposition offered by a material or device to the flow of electric current. It is measured in ohms (Ω) and is determined by factors such as the material's resistivity, length, cross-sectional area, and temperature.
  5. 12. The measure of a material's ability to conduct electric current. It is the reciprocal of resistivity and is influenced by factors such as temperature and the presence of impurities.
Down
  1. 1. A material that resists the flow of electric current, preventing the passage of electrical charge carriers.
  2. 2. A type of battery that can be restored to its original state by passing a current through it in the opposite direction of discharge. This allows for multiple uses, making them more environmentally friendly and cost-effective in the long term.
  3. 4. A conductor through which an electric current enters or leaves an electrolyte or other non-metallic medium. In electrochemical cells, these terminals facilitate the transfer of electrons between the cell and its external circuit.
  4. 5. A fundamental principle in electrical engineering, stating that the current flowing through a conductor between two points is directly proportional to the voltage across the two points, and inversely proportional to the resistance between them. It is expressed mathematically as V=IR, where V is the voltage (in volts), I is the current (in amperes), and R is the resistance (in ohms).
  5. 8. A type of electrochemical cell where the electrolyte is in liquid form. It typically consists of two electrodes immersed in a liquid electrolyte solution, commonly found in lead-acid batteries.
  6. 9. The inherent property of a material that quantifies its resistance to electric current flow. It is measured in ohm-meters (Ω·m) and is dependent on factors such as material composition, temperature, and physical structure.
  7. 10. A passive two-terminal electrical component designed to introduce specific amounts of resistance into an electric circuit. These components are commonly used to limit current, divide voltages, and adjust signal levels in various electronic applications.
  8. 11. The flow of electric charge carriers, typically electrons, through a conductor or medium. It is measured in amperes (A) and is fundamental to the operation of electrical circuits, providing power to electrical devices.