Chapter 21 Notes
... positive charge *Electric Field lines – see page 485 figure 21-2 The distance between the lines will indicate the strength of the field – the closer the lines the stronger the field Lines always leave the positive and enter the negative ...
... positive charge *Electric Field lines – see page 485 figure 21-2 The distance between the lines will indicate the strength of the field – the closer the lines the stronger the field Lines always leave the positive and enter the negative ...
Circuit notes
... And, if you want a circuit you ALWAYS need two things: a power supply and a conductor. • Most circuits also have an electrical device and a switch. ...
... And, if you want a circuit you ALWAYS need two things: a power supply and a conductor. • Most circuits also have an electrical device and a switch. ...
Exercises
... 1. Circle the letter beside the names of the two scientists who, in 1831, independently discovered that electric current can be produced in a wire by simply moving a magnet into or out of a wire coil. a. Einstein and Faraday b. Faraday and Henry c. Henry and Newton d. Maxwell and Newton 2. Is the fo ...
... 1. Circle the letter beside the names of the two scientists who, in 1831, independently discovered that electric current can be produced in a wire by simply moving a magnet into or out of a wire coil. a. Einstein and Faraday b. Faraday and Henry c. Henry and Newton d. Maxwell and Newton 2. Is the fo ...
Honors Physics
... 11. What causes the earth to have its magnetic field? 12. What is the difference between geographic north and a compass reading called? 13. What direction do the field lines “move” in a magnet? 14. Describe what happen to a wire placed in a magnetic field when current passes through the wire in both ...
... 11. What causes the earth to have its magnetic field? 12. What is the difference between geographic north and a compass reading called? 13. What direction do the field lines “move” in a magnet? 14. Describe what happen to a wire placed in a magnetic field when current passes through the wire in both ...
Learning Objectives
... current.induction. ● increasing the strength of the magnet ● increasing the number of turns in a coil ● increasing the speed of the magnet coil of insulated wire ...
... current.induction. ● increasing the strength of the magnet ● increasing the number of turns in a coil ● increasing the speed of the magnet coil of insulated wire ...
Chapter 10 Magnets Notes
... The second method works because the magnetism in the electromagnet comes from the total amount of current flowing around the nail. If there is 1 amp of current in the wire, each loop of wire adds 1 amp to the total amount that flows around the nail. Ten loops of 1 amp each make 10 total amps flowing ...
... The second method works because the magnetism in the electromagnet comes from the total amount of current flowing around the nail. If there is 1 amp of current in the wire, each loop of wire adds 1 amp to the total amount that flows around the nail. Ten loops of 1 amp each make 10 total amps flowing ...
Slide 1
... with a device that could store charge/electrons. This was the first “capacitor”. By touching the knob with a charged rod, more and more charge could be stored in the Leyden Jar. ...
... with a device that could store charge/electrons. This was the first “capacitor”. By touching the knob with a charged rod, more and more charge could be stored in the Leyden Jar. ...
L1 in class - The College of Engineering at the University of Utah
... • Writing Lab starts Monday. Prelab – Read article. See Lab website (linked to class website). If you have a laptop with Word or similar, please bring it. OK to go to any lab section (even if not signed up), turn in work to you assigned TA. • Office hours today will be abbreviated (end at 1045). Ema ...
... • Writing Lab starts Monday. Prelab – Read article. See Lab website (linked to class website). If you have a laptop with Word or similar, please bring it. OK to go to any lab section (even if not signed up), turn in work to you assigned TA. • Office hours today will be abbreviated (end at 1045). Ema ...
Current and Resistance
... the electric field is a constant σ that is independent of the electric field producing the current J=σE Further derivations show that R=L/σA which is called ...
... the electric field is a constant σ that is independent of the electric field producing the current J=σE Further derivations show that R=L/σA which is called ...
Chapter 17 & 18
... Explain how fused and circuit breakers protect your home against short circuits and circuit overloads. A fuse has a thin strip of metal that expands and contracts in the presence of current. If the current is too high, the metal strip melts and the circuit is broken – preventing electrical fires. Ci ...
... Explain how fused and circuit breakers protect your home against short circuits and circuit overloads. A fuse has a thin strip of metal that expands and contracts in the presence of current. If the current is too high, the metal strip melts and the circuit is broken – preventing electrical fires. Ci ...
History of electromagnetic theory
For a chronological guide to this subject, see Timeline of electromagnetic theory.The history of electromagnetic theory begins with ancient measures to deal with atmospheric electricity, in particular lightning. People then had little understanding of electricity, and were unable to scientifically explain the phenomena. In the 19th century there was a unification of the history of electric theory with the history of magnetic theory. It became clear that electricity should be treated jointly with magnetism, because wherever electricity is in motion, magnetism is also present. Magnetism was not fully explained until the idea of magnetic induction was developed. Electricity was not fully explained until the idea of electric charge was developed.