Cite a Poem From a Book. EasyBib can help you cite a poem from a book, here's how: 1  Type in the ISBN of your text book (find inside the front of the book).  If more than one book is listed, double check the details and click Select on the correct book.
Without electromagnets, the speakers won't work, that is why they are used. Like asking why an engine is used in an automobile, or blades in a fan. Some speakers do you electrostatics to produce the motion needed to produce sound. billrussell42 Â· 7 years ago. Thumbs up. 1.here is an electromagnet attatched to the diaphragm. When current flows through the coil one way it becomes a magnet. since there is a permanent magnet behind the coil, the coil is pulled toward the magnet.
To ensure the best sound amplification, make sure that your speakers can handle the power that comes out of the amplifier. 1  Disconnect the battery wire. 2  Find or drill a hole in the firewall. 3  Run the wire. 4  Install the remote turn on lead and RCA cable. 5  Run the speaker wires. 6  Ground the system. 7  Mount the amp. A power wire needs to go to the amplifier through the car's firewall to the battery. 2  There may be a factory hole or you could use an empty rubber grommet. 3  If there is no empty grommet or factory hole then it is necessary to drill one.