Correct Option
The correct option isChemical Effect of Electric Current
Explanation
When an electric current flows through a conducting solution (electrolyte), it causes chemical reactions to occur at the electrodes. This phenomenon, where electrical energy induces a chemical change, is fundamentally known as the chemical effect of electric current. This principle is the basis for electrolysis and electroplating.
Option Analysis:
- Electromagnetic Induction is incorrect: Electromagnetic Induction is the phenomenon of generating an electromotive force (EMF) or current by changing the magnetic field associated with a conductor. It is related to magnetism, not chemical changes in liquids.
- Chemical Effect of Electric Current is correct: The Chemical Effect of Electric Current describes the chemical decomposition of a conducting liquid (electrolyte) when current passes through it. Common manifestations include the formation of gas bubbles at electrodes, deposition of metal, or changes in the color of the solution.
- Heating Effect of Electric Current is incorrect: The Heating Effect of Electric Current (Joule heating) refers to the conversion of electrical energy into heat energy when current passes through a resistor. It is a thermal phenomenon, not a chemical one.
- Electrostatic Discharge is incorrect: Electrostatic Discharge is the sudden, momentary flow of electric current between two electrically charged objects, typically caused by contact or dielectric breakdown (e.g., lightning or a static shock).
Key Takeaway:
The passage of electric current through a conducting liquid resulting in chemical decomposition is termed the chemical effect of electric current (or electrolysis).