Electric Fields and Electric Potential Purpose: To determine the
... electrical forces) in moving a small positive test charge slowly between two points. If one of the points is taken to be a reference point with zero potential, then the electric potential at any point can be defined in terms of the work done per unit charge in moving a small positive test charge fro ...
... electrical forces) in moving a small positive test charge slowly between two points. If one of the points is taken to be a reference point with zero potential, then the electric potential at any point can be defined in terms of the work done per unit charge in moving a small positive test charge fro ...
Homopolar motors : (~3040 min)
... spin, etc. During this time, walk around the students, see their progress and ask a few of the review questions mentioned above. After some time, gather the attention back from the students: (They may now keep all the materials, and show their parents at home and explain how this device works ...
... spin, etc. During this time, walk around the students, see their progress and ask a few of the review questions mentioned above. After some time, gather the attention back from the students: (They may now keep all the materials, and show their parents at home and explain how this device works ...
2006 - The Physics Teacher
... Describe what will happen if the current flows in the opposite direction. The aluminium foil will move in the opposite direction. Describe what will happen if a larger current flows through the aluminium foil. The foil will experience a greater force and therefore there will be a greater jump. Descr ...
... Describe what will happen if the current flows in the opposite direction. The aluminium foil will move in the opposite direction. Describe what will happen if a larger current flows through the aluminium foil. The foil will experience a greater force and therefore there will be a greater jump. Descr ...
Chapter 11.1 & 11.2
... (North pole of a compass needle points towards it.) • Magnetic poles are not at geographic poles, magnetic north pole is in Northern Canada. It moves with about 64 miles/year toward Northern Russia. Deviation between true north (rotation axis) and magnetic north is called magnetic declination. • The ...
... (North pole of a compass needle points towards it.) • Magnetic poles are not at geographic poles, magnetic north pole is in Northern Canada. It moves with about 64 miles/year toward Northern Russia. Deviation between true north (rotation axis) and magnetic north is called magnetic declination. • The ...
Electomagnetism
... Believe it or not, there is a connection between electricity and magnetism. An electric current produces a magnetic field! The Danish physicist H. C. Oersted first discovered this relationship. The French physicist Ampere, determined magnetic field strength could be increased when the electrical wir ...
... Believe it or not, there is a connection between electricity and magnetism. An electric current produces a magnetic field! The Danish physicist H. C. Oersted first discovered this relationship. The French physicist Ampere, determined magnetic field strength could be increased when the electrical wir ...
PPT - LSU Physics
... charge from one point on a conductor surface to another • Equipotentials are normal to E, so they follow the shape of the conductor near the surface. ...
... charge from one point on a conductor surface to another • Equipotentials are normal to E, so they follow the shape of the conductor near the surface. ...
E_M_1_doc
... Charge up the balloon and bring it near the aluminum foil ball of the electroscope13. As the balloon approaches the ball, the two leaves hanging below should start to move apart. If the ball is touched, the strips will jump apart. Observe the strips as the balloon is moved towards and away from the ...
... Charge up the balloon and bring it near the aluminum foil ball of the electroscope13. As the balloon approaches the ball, the two leaves hanging below should start to move apart. If the ball is touched, the strips will jump apart. Observe the strips as the balloon is moved towards and away from the ...
Chapter 1 Introduction: Physical Quantities, Units and Mathematical
... straw. The Greeks also recorded the observation that some naturally occurring “stones” would attract iron. The sciences of electricity and magnetism developed separately for centuries – until 1820 when Oersted found an electric current in a wire can deflect a magnetic compass needle. The new science ...
... straw. The Greeks also recorded the observation that some naturally occurring “stones” would attract iron. The sciences of electricity and magnetism developed separately for centuries – until 1820 when Oersted found an electric current in a wire can deflect a magnetic compass needle. The new science ...
Lesson Plan: Electricity and Magnetism
... It takes electric current into a series of specially wound coils to create North and South magnetic poles that spin in a circle. These poles pull along magnets on a rotor, which then spins. An electric generator converts mechanical energy into electromagnetic energy. § As mechanical energy spins a ...
... It takes electric current into a series of specially wound coils to create North and South magnetic poles that spin in a circle. These poles pull along magnets on a rotor, which then spins. An electric generator converts mechanical energy into electromagnetic energy. § As mechanical energy spins a ...
Comparing DC Motors, Generators and Alternators
... 6. What is the magnitude of the force acting on the wire if the magnetic field strength at the wire is 0.083 Tesla, the length of the wire is 2.5 10 2 m and the magnitude of the current through the wire is 3.0 A? ...
... 6. What is the magnitude of the force acting on the wire if the magnetic field strength at the wire is 0.083 Tesla, the length of the wire is 2.5 10 2 m and the magnitude of the current through the wire is 3.0 A? ...
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.