ElectroMagnetism!
Quiz by eric prileson
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5 questions
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- Q1If electric current (moving electric charge) flows through a wire, what is created?a switcha magnetic fielda lighta battery30s
- Q2What is a unique feature of an electromagnet?you can turn it on and offit is permanentit is weaker than a bar magnetit only works when it is heated up30s
- Q3What is required for an electric charge to generate a magnetic field?The electric charge must be part of an iron objectThe charge must be moving in a current (flowing as electricity)The electric charge must be extremely powerfulThe electric charge must be positive30s
- Q4What is one way to make an electromagnet stronger?use less charge from a power sourceWrap the electromagnet with more coils of wirePut a plastic core inside the electromagnetIncrease the distance between objects30s
- Q5What is one important application of electromagnetism in everyday life?electric motors in machinescardboard box packagingmicroscope images of small objectsbicycles30s