161The strength of an electromagnet generally increases with an increase in current and what other factor?
162An electric generator or dynamo produces electricity based on which fundamental principle?
163Which scientist is credited with discovering the principle of electromagnetic induction?
164Static electricity is generally produced by the transfer of what particles between objects?
165Lightning during a thunderstorm is a large-scale natural example of what phenomenon?
166A lightning rod protects tall buildings by providing a safe path for lightning current to reach what?
167Semiconductors are materials whose electrical conductivity lies between that of conductors and what?
168Which commonly used element is the primary material in most computer chips and transistors?
169What does the abbreviation LED commonly stand for in electronics?
170A laser is best described as producing what kind of light beam?
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