What is the relationship between electric force and electric field
... parallel or antiparallel to the force. Electric fields can go on forever if not influenced by a 2nd charge, while magnetic fields will always form loops. 3. In both cases, a particle moving through a each field can be acted apon by a force. In an electric field, the particle must have a charge and t ...
... parallel or antiparallel to the force. Electric fields can go on forever if not influenced by a 2nd charge, while magnetic fields will always form loops. 3. In both cases, a particle moving through a each field can be acted apon by a force. In an electric field, the particle must have a charge and t ...
I s - AIS IGCSE Science
... force exerted on a conductor in a magnetic field? (c) With the aid of a diagram show how Fleming’s left-hand rule can be used to find the direction of the force on a conductor. Copy figures 22.5 and 22.6 and explain how a moving coil loudspeaker and electric motor work. (a) Draw diagrams and explain ...
... force exerted on a conductor in a magnetic field? (c) With the aid of a diagram show how Fleming’s left-hand rule can be used to find the direction of the force on a conductor. Copy figures 22.5 and 22.6 and explain how a moving coil loudspeaker and electric motor work. (a) Draw diagrams and explain ...
12. Electromagnetic Induction
... and could attract iron filings. Soon his compatriot André-Marie Ampère demonstrated that two parallel wires were attracted towards one another if each had a current flowing through it in the same direction. However, the wires repelled each other if the currents flowed in the opposite directions. Int ...
... and could attract iron filings. Soon his compatriot André-Marie Ampère demonstrated that two parallel wires were attracted towards one another if each had a current flowing through it in the same direction. However, the wires repelled each other if the currents flowed in the opposite directions. Int ...
PPTX - University of Toronto Physics
... - The thing that is the same for resistors in parallel is voltage. Use P = V 2 / R to compare power. Higher power corresponds lower resistance. - The thing that is the same for resistors in series is current. Use P = I 2 R to compare power. Higher resistance corresponds to higher power. - In your ho ...
... - The thing that is the same for resistors in parallel is voltage. Use P = V 2 / R to compare power. Higher power corresponds lower resistance. - The thing that is the same for resistors in series is current. Use P = I 2 R to compare power. Higher resistance corresponds to higher power. - In your ho ...
What is the direction of the magnetic field produced by this current
... It cannot come from the B-field, as that is unchanging while the bar is sliding. Answer: you must use force to pull the right side at constant v. How much force? Ans: Power = Fv = I2R ...
... It cannot come from the B-field, as that is unchanging while the bar is sliding. Answer: you must use force to pull the right side at constant v. How much force? Ans: Power = Fv = I2R ...
Investigation - Mapping Magnetic Fields Of Like
... noticed while doing this investigation that all of the magnetic materials were “attracted” to the magnets, none were repelled. However, we all know that sometimes magnets attract each other and sometimes they repel each other. This attraction or repulsion (and why it is sometimes one and sometimes t ...
... noticed while doing this investigation that all of the magnetic materials were “attracted” to the magnets, none were repelled. However, we all know that sometimes magnets attract each other and sometimes they repel each other. This attraction or repulsion (and why it is sometimes one and sometimes t ...
ON DISCRIMINATION OF THERMAL VERSUS MECHANICAL
... Introduction: Hypervelocity impacts represent a major mechanism for the evolution of the solid matter in our solar system. Shock waves generated during impacts can modify the properties of magnetic minerals in rocks and their remanent magnetization [1]. Understanding the physical mechanisms associat ...
... Introduction: Hypervelocity impacts represent a major mechanism for the evolution of the solid matter in our solar system. Shock waves generated during impacts can modify the properties of magnetic minerals in rocks and their remanent magnetization [1]. Understanding the physical mechanisms associat ...
5.physics
... Working- 1.LC oscillator produces damped oscillations due to inherent electrical resistance. 2.To have undamped oscillations transistors can be used to give +ve feed back from the output circuit to the input circuit. 3.K is closed; magnetic flux is linked with L’as well as L increases (inductively ...
... Working- 1.LC oscillator produces damped oscillations due to inherent electrical resistance. 2.To have undamped oscillations transistors can be used to give +ve feed back from the output circuit to the input circuit. 3.K is closed; magnetic flux is linked with L’as well as L increases (inductively ...
Chapter 1
... The relative permittivity or dielectric constant r =/0 is often used: A material with r = 10 reduces the E-field by 10 times. r for free space (vacuum) = 1. Electric flux density: D =E (C/m2) D is material independent. Magnetic field Fm = magnetic force: The sources of magnetic forc ...
... The relative permittivity or dielectric constant r =/0 is often used: A material with r = 10 reduces the E-field by 10 times. r for free space (vacuum) = 1. Electric flux density: D =E (C/m2) D is material independent. Magnetic field Fm = magnetic force: The sources of magnetic forc ...
The Galilean Moons and the Nature of their
... The fact that the field strength measured for Ganymede is far higher than the ambient field requires a different explanation than a solely induced field. There are number of gravitational constraints on the internal structure of Ganymede, but perhaps the most important is a very small value for its ...
... The fact that the field strength measured for Ganymede is far higher than the ambient field requires a different explanation than a solely induced field. There are number of gravitational constraints on the internal structure of Ganymede, but perhaps the most important is a very small value for its ...
1 PHY831 - Subject Exam Dec. 14th 2011, 10am - 1pm
... The mean field equation can be found in several ways, for example by doing the variation δF/δm = 0, or by finding the expectation < Si > using the mean field Hamiltonian. (iii) The first thing to note is that T anh(3βJm2 ) for ferromagnetic interactions (i.e. J > 0) is always positive, so there are ...
... The mean field equation can be found in several ways, for example by doing the variation δF/δm = 0, or by finding the expectation < Si > using the mean field Hamiltonian. (iii) The first thing to note is that T anh(3βJm2 ) for ferromagnetic interactions (i.e. J > 0) is always positive, so there are ...
CTKnightFinala
... A hand-cranked electrical generator is attached to a resistor R. The generator is turned at a constant rate which causes an AC current to flow in the resistor. Suddenly,the value of the resistance R increases. Does the generator get easier or harder to turn? A: Easier. B: Harder. C: No change in dif ...
... A hand-cranked electrical generator is attached to a resistor R. The generator is turned at a constant rate which causes an AC current to flow in the resistor. Suddenly,the value of the resistance R increases. Does the generator get easier or harder to turn? A: Easier. B: Harder. C: No change in dif ...
Electromagnet
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet.The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.Electromagnets are widely used as components of other electrical devices, such as motors, generators, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment. Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel.