Welcome to your Electromagnet Name Email True or false? When current flows through a wire, it generates a magnetic field. True False None Which of these is NOT an advantage of an electromagnet? The strength can be changed It is always magnetic It can be switched off It can be reversed None Which of the following happens to an electromagnet when a soft iron core is added? The electromagnet doesn’t change The electromagnet reverses The electromagnet gets stronger The electromagnet gets weaker None What is the name of the coil of wire with many turns? Field Magnet Connector Solenoid None Which of these wouldn’t increase the strength of an electromagnet? Coiling the wire Adding a plastic core Adding a soft iron core Increasing the current None Match them to their meaning electromagnet magnetic field iron core solenoid A piece of iron that is placed inside a solenoid A coil of wire with many turns. A magnet formed by an electrical current The area around a magnet where a force may be felt. Fill in the gaps Any wire with current flowing through it has a Most of the time the magnetic field is too to be important or have any noticeable effect. The magnetic field lines around a current-carrying wire are . The field lines are closer together near the wire. This shows that the magnetic field is when close to the wire. Time's upYou cannot switch tabs while taking this quiz!You are not allowed to switch tabs violation has been recorded.you cannot minimize full screen mode!You are not allowed to minimize full screen while taking this quiz, violation has been recorded.Access denied! To begin the quiz, please grant this quiz access to your camera.Time is Up!
