EM EASY on August 03, 2023 Get link Facebook X Pinterest Email Other Apps SR Educators Tuitions, known for its innovative teaching methods and exceptional results, is excited to announce the introduction of its affordable tuition fee structure starting from just Rs 1000/- Contact 9121951205 Krishna nagar and Pattabhipuram. Electromagnetism Quiz (Easy) Electromagnetism Quiz (Easy) 1. What is an electromagnet made of? a) Copper b) Steel c) Iron core and a coil of wire 2. What does the direction of the magnetic field lines inside an electromagnet depend on? a) The direction of electric current b) The temperature of the electromagnet c) The material of the electromagnet 3. How can you increase the strength of an electromagnet? a) By increasing the number of turns in the coil b) By decreasing the current flow c) By using a non-metallic core 4. What is the main difference between an electromagnet and a permanent magnet? a) An electromagnet can be turned on and off b) An electromagnet is always stronger c) An electromagnet is always made of steel 5. What happens to the strength of an electromagnet if the current flowing through the coil is increased? a) Strength increases b) Strength decreases c) Strength remains the same 6. Which device converts electrical energy into mechanical energy using electromagnetism? a) Transformer b) Generator c) Electric motor 7. How can you reverse the direction of the magnetic field of an electromagnet? a) By changing the direction of the electric current b) By increasing the temperature of the electromagnet c) By using a larger iron core 8. What is the purpose of using soft iron as the core in an electromagnet? a) To make it lightweight b) To increase the resistance c) To increase the magnetic strength 9. What happens to the magnetic field of an electromagnet if the current flow is stopped? a) It remains the same b) It becomes weaker c) It disappears 10. What is the relationship between the strength of the magnetic field and the distance from an electromagnet? a) The strength increases with distance b) The strength decreases with distance c) The strength remains the same at all distances Submit