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  1. 4. Limits or regulates the flow of electrical current, crucial for controlling circuit behavior.
  2. 5. Protects circuits by breaking the connection if excessive current flows, preventing damage to appliances and wiring.
  3. 7. Measures the electric potential difference between two points in a circuit, essential for diagnosing electrical issues.
Down
  1. 1. A source of electric power consisting of one or more electrochemical cells, providing energy for various devices.
  2. 2. A versatile instrument for measuring voltage, current, and resistance in electrical circuits.
  3. 3. Transfers electrical energy between circuits, changing voltage levels to suit different applications.
  4. 6. A semiconductor device that allows current to flow in one direction only, used for rectification in circuits.