Electrical Science Quiz:Welcome to the Electrical Knowledge Challenge!What is the speed of light in a vacuum?100%Next Post Correct Incorrect The speed of light in a vacuum is approximately 300,000,000 meters per second. What is the speed of light in a vacuum? 300,000,000 m/s 100,000,000 m/s 150,000,000 m/s 200,000,000 m/s 100%