Midterm Exam - 1 Set A Solution
... a ) If the particle is undeflected Region 1, then find the magnitude & direction of the B. (5 points) b ) What is the direction of B in Region 2 to make the particle go in a counterclockwise circular path? (3 points) c ) Determine the area of the semi circle in Region 2. (7 points) d ) In Region 1, ...
... a ) If the particle is undeflected Region 1, then find the magnitude & direction of the B. (5 points) b ) What is the direction of B in Region 2 to make the particle go in a counterclockwise circular path? (3 points) c ) Determine the area of the semi circle in Region 2. (7 points) d ) In Region 1, ...
Document
... polarity of the emf is always positive. The basic idea is to use a single split ring instead of two complete rings. The split ring is arranged so that, just as the emf is about to change sign from positive to negative, the brushes cross the gap, and the polarity of the contacts is switched. The pola ...
... polarity of the emf is always positive. The basic idea is to use a single split ring instead of two complete rings. The split ring is arranged so that, just as the emf is about to change sign from positive to negative, the brushes cross the gap, and the polarity of the contacts is switched. The pola ...
Oscillating Magnetic Dipole in an Inhomogeneous Magnetic Field
... Within this lab you will also be using a larger current loop, a so called solenoid. If viewed from a far away distance it could also be approximated as a magnetic dipole. However, since you are going to investigate properties of an oscillating movement along its central axis, such an approximation i ...
... Within this lab you will also be using a larger current loop, a so called solenoid. If viewed from a far away distance it could also be approximated as a magnetic dipole. However, since you are going to investigate properties of an oscillating movement along its central axis, such an approximation i ...
Name: Gravitational, Electric and Magnetic Fields
... force needing two opposite charges. c. All three require opposite poles or charges, but only gravitational force follows the inverse square law. d. Electrostatic force and gravitational force have associated fields, but magnetic force does not. e. Gravitational force is stronger than electrostatic f ...
... force needing two opposite charges. c. All three require opposite poles or charges, but only gravitational force follows the inverse square law. d. Electrostatic force and gravitational force have associated fields, but magnetic force does not. e. Gravitational force is stronger than electrostatic f ...
Chapter 5
... The current in each wire produces a magnetic field that is felt by the current of the other wire. Using the right-hand rule, we find that each wire experiences a force toward the other wire (i.e., an attractive force) when the currents are parallel (as shown). Follow-up: What happens when one of the ...
... The current in each wire produces a magnetic field that is felt by the current of the other wire. Using the right-hand rule, we find that each wire experiences a force toward the other wire (i.e., an attractive force) when the currents are parallel (as shown). Follow-up: What happens when one of the ...
Investigation of smart fluid properties in secondary
... We can easily repeat this experiment for ourselves, but we need to know that the accumulated charge is dischargeing quickly through the fluid, since the generator is unable to maintain noteable current. Therefore, the electrodes must be well insulated from the liquid. If you decide to use high volta ...
... We can easily repeat this experiment for ourselves, but we need to know that the accumulated charge is dischargeing quickly through the fluid, since the generator is unable to maintain noteable current. Therefore, the electrodes must be well insulated from the liquid. If you decide to use high volta ...
Sets 1 to 8
... 1. A wire carries a current of 5A. How many electrons move through a cross-section of the wire in one hour? 2. The life time of a 12V battery is 1000 ampere-hour. How much energy can the battery deliver in its life time? 3. A metallic wire has uniform circular cross-section of diameter 0.5 mm. The r ...
... 1. A wire carries a current of 5A. How many electrons move through a cross-section of the wire in one hour? 2. The life time of a 12V battery is 1000 ampere-hour. How much energy can the battery deliver in its life time? 3. A metallic wire has uniform circular cross-section of diameter 0.5 mm. The r ...
Magnetic field
... properties of magnetism. Example: The lodestone, which contains magnetite, a form of iron, and that has been magnetized by the earth’s magnetic field Artificial magnet- a device that has been made magnetic by induction Magnetic induction- where a magnetic field causes an un-magnetized ferromagnetic ...
... properties of magnetism. Example: The lodestone, which contains magnetite, a form of iron, and that has been magnetized by the earth’s magnetic field Artificial magnet- a device that has been made magnetic by induction Magnetic induction- where a magnetic field causes an un-magnetized ferromagnetic ...
chapter29
... The magnetic north pole points toward the Earth’s north geographic pole This means the Earth’s north geographic pole is a magnetic south pole Similarly, the Earth’s south geographic pole is a magnetic north pole ...
... The magnetic north pole points toward the Earth’s north geographic pole This means the Earth’s north geographic pole is a magnetic south pole Similarly, the Earth’s south geographic pole is a magnetic north pole ...
10-Tutorial Packet
... That which feels the force of a gravitational field (namely mass) is also what causes the gravitational field to exist. Electric charge plays the same dual role for electric field; it both feels the force of an existing electric field and causes electric fields to exist. The same is true of the magn ...
... That which feels the force of a gravitational field (namely mass) is also what causes the gravitational field to exist. Electric charge plays the same dual role for electric field; it both feels the force of an existing electric field and causes electric fields to exist. The same is true of the magn ...
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.