While the strength of permanent magnets depends on the type of material that makes them up, an electromagnet's strength depends on the amount of current that flows through it. Permanent magnets can lose their magnetic properties such as their ability to give off a magnetic field when they're ...
The ancient Greeks are known to be among the first people to have discovered lodestones. Magnetism may have seemed magical to them. After all, a magnetic field is invisible. But its effects can be felt. Over the past century, scientists have discovered that a magnet’s secret strength lies ...
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State two ways by which the strength of an electromagnet can be increased. How is AC electrical power generated? What are the currents of I1 and I2 as well as their direction? Name the transformer used in the (a) power generating station (b) power sub station. State the function of ea...
What is electromagnet strength? What is a carbon film potentiometer? What is a red laser diode? What is a power transducer? What is a circuit that has only one path? What is electrical induction? What are the units of power? What is an infrared laser diode?
An electromagnet is a type of magnet created by running an electric current through a conductive material. The electric current generates a magnetic field around the material, effectively turning it into a temporary magnet. The strength of the magnetic field produced by an electromagnet can be contr...
Wire length in an electromagnet within the stator, along with voltage, determines the torque or strength of the motor. Also, the longer the wire, i.e., the more coils in the stator, the greater the magnetic field. This translates into increased power to rotate the rotor. ...
What is the magnetic field measured in? The strength of the magnetic field is expressed in units ofTesla (T) or microtesla (µT). Another unit, which is commonly used is the Gauss (G) or milligauss (mG), where 1 G is equivalent to 10-4T (or 1 mG = 0.1µT). There are a...
The intense electrical field at the tip of the fracture overcomes the dielectric strength of the acrylic, initiating complete electrical breakdown of the specimen. During breakdown, some of the chemical bonds that held acrylic molecules together suddenly break, stripping away free electrons in a ...
1. The magnetic field strength in a solenoid depends upon the number of turns per unit length in the solenoid. 2. The magnetic field strength in a solenoid depends upon the current flowing in the wire of the solenoid. 3. The magnetic field strength in a solenoid depends upon the diameter...