Easy Electromagnet Handout (Teacher)
... Talk About It! 1. What happened when you connected both ends of the battery? The paperclips were attracted to the screwdriver. 2. Why do you think this happened? Electricity and magnetism are very closely related. When the electrical circuit was completed, you rearranged tiny parts of the screwdrive ...
... Talk About It! 1. What happened when you connected both ends of the battery? The paperclips were attracted to the screwdriver. 2. Why do you think this happened? Electricity and magnetism are very closely related. When the electrical circuit was completed, you rearranged tiny parts of the screwdrive ...
G482 Mod 2 2.2.3 and 2.2.4 Resistance and Resistivity
... a wire of cross-sectional area 1.2 x 10-2 mm2 and it is made of a metal of resistivity 3.9 x 10-7 Ωm at the operating temperature of the bulb. (a) Show that the resistance of the filament at its operating temperature is 2.4 Ω. (b) Calculate the total length of the filament. (c) Explain the result yo ...
... a wire of cross-sectional area 1.2 x 10-2 mm2 and it is made of a metal of resistivity 3.9 x 10-7 Ωm at the operating temperature of the bulb. (a) Show that the resistance of the filament at its operating temperature is 2.4 Ω. (b) Calculate the total length of the filament. (c) Explain the result yo ...
Tuesday, June 21, 2016 - UTA HEP WWW Home Page
... Why is the electric energy useful? – It can transform into different forms of energy easily. • Motors, pumps, etc, transform electric energy to mechanical energy • Heaters, dryers, cook-tops, etc, transforms electricity to thermal energy • Light bulb filament transforms electric energy to light ener ...
... Why is the electric energy useful? – It can transform into different forms of energy easily. • Motors, pumps, etc, transform electric energy to mechanical energy • Heaters, dryers, cook-tops, etc, transforms electricity to thermal energy • Light bulb filament transforms electric energy to light ener ...
10.2 Electromagnets
... resistance and generates more heat. A good electromagnet is a balance between too much resistance and having enough turns to get a strong enough magnet. Factors affecting The magnetic force exerted by a simple electromagnet depends on three factors: the force • The amount of electric current in the ...
... resistance and generates more heat. A good electromagnet is a balance between too much resistance and having enough turns to get a strong enough magnet. Factors affecting The magnetic force exerted by a simple electromagnet depends on three factors: the force • The amount of electric current in the ...
MAGNETIC FORCE ON A CURRENT
... To show that the magnetic force on a wire is proportional to the current in the wire and to use that force to calculate the magnetic field strength. APPARATUS: Large electromagnet with DC power supply Two ammeters U-shaped wire suspended from balance DC power supply for wire Gaussmeter with transver ...
... To show that the magnetic force on a wire is proportional to the current in the wire and to use that force to calculate the magnetic field strength. APPARATUS: Large electromagnet with DC power supply Two ammeters U-shaped wire suspended from balance DC power supply for wire Gaussmeter with transver ...
LEP 4.1.06 Current balance / Force acting on a current
... should only sag slightly, so that no forces from the magnetic field act on them. 1. The pole shoes are first placed on the electromagnets in such a way as to produce an air gap of about 4 cm. The conductor loop with l = 25 mm is suspended from the balance with its horizontal section perpendicular to ...
... should only sag slightly, so that no forces from the magnetic field act on them. 1. The pole shoes are first placed on the electromagnets in such a way as to produce an air gap of about 4 cm. The conductor loop with l = 25 mm is suspended from the balance with its horizontal section perpendicular to ...
The Nature of Resistance - Purdue College of Science
... 4a. Explore how the resistor length affects the resistance Read through the directions carefully before you begin this activity. Measure the diameter of the resistor. Record your data in the table on the next page. Calculate the cross-sectional area and add this value to the data table. Using the mu ...
... 4a. Explore how the resistor length affects the resistance Read through the directions carefully before you begin this activity. Measure the diameter of the resistor. Record your data in the table on the next page. Calculate the cross-sectional area and add this value to the data table. Using the mu ...
Steady Electric Current
... • Consider power loss in a conductor. Assume constant E and J for simplicity. ...
... • Consider power loss in a conductor. Assume constant E and J for simplicity. ...
Electromigration
Electromigration is the transport of material caused by the gradual movement of the ions in a conductor due to the momentum transfer between conducting electrons and diffusing metal atoms. The effect is important in applications where high direct current densities are used, such as in microelectronics and related structures. As the structure size in electronics such as integrated circuits (ICs) decreases, the practical significance of this effect increases.