Exam: TOEFL

Definition: A type of electrical current that occurs in the atmosphere, especially in areas with strong auroras and near the magnetic equator.

Example: The scientists studied the electrojet to understand its effects on communication systems.

Definition: Describing a process that does not require an external electric current to deposit metal, often used in chemical applications.

Example: The electroless plating method is often used to coat surfaces with metal without needing electricity.

Definition: A professional who removes unwanted body hair using electric currents.

Example: She decided to visit an electrologist to get rid of her unwanted hair permanently.

Definition: A field of science that studies electricity, its effects, and its properties.

Example: Electrology is important for understanding how electricity interacts with different materials.

Definition: A process that uses electricity to cause a chemical change, often to break down substances or destroy tissue.

Example: Electrolysis is commonly used in beauty treatments to remove unwanted hair.

Definition: A substance that can conduct electricity when dissolved in water or melted, often consisting of ions like sodium or potassium that help regulate various bodily functions.

Example: Drinking sports drinks can help replenish electrolytes lost during intense exercise.

Definition: Related to the process of electrolysis, which involves the use of electricity to cause a chemical change, often in a solution containing ions.

Example: The electrolytic process is essential for refining metals from their ores.

Definition: To break down a substance into its components using an electric current.

Example: Scientists can electrolyze water to separate it into hydrogen and oxygen gases.

Definition: A type of magnet that becomes magnetized when electricity flows through a wire coil wrapped around a core, usually made of iron.

Example: The engineer used an electromagnet to lift heavy metal objects in the factory.

Definition: Relating to or produced by the interaction of electric and magnetic fields.

Example: The electromagnetic waves travel through space at the speed of light.