P6 Revision Questions Motors and Generators
... The input to the transformer is 230 V. There are 10 000 turns on the primary coil of the transformer. The output is 115 V. How many turns are there on the secondary coil? Use the equations on page 2 to help you. ...
... The input to the transformer is 230 V. There are 10 000 turns on the primary coil of the transformer. The output is 115 V. How many turns are there on the secondary coil? Use the equations on page 2 to help you. ...
Electric Motors
... All magnets have two poles, a north pole and a south pole. Magnets follow the rule that opposites attract and like poles repel. So if you try to put two magnets together, south pole to south pole or north pole to north pole, they will push away from or repel one another. If you try to put a north po ...
... All magnets have two poles, a north pole and a south pole. Magnets follow the rule that opposites attract and like poles repel. So if you try to put two magnets together, south pole to south pole or north pole to north pole, they will push away from or repel one another. If you try to put a north po ...
ELECTROMAGNETISM
... People had tried similar experiments before, but only with static electricity, not with a moving electric current. For instance, they had hung batteries so that they were free to rotate in the earth's magnetic field, and found no effect; since the battery was not connected to a complete circuit, the ...
... People had tried similar experiments before, but only with static electricity, not with a moving electric current. For instance, they had hung batteries so that they were free to rotate in the earth's magnetic field, and found no effect; since the battery was not connected to a complete circuit, the ...
... zontal oscillatory motion of the sample between two oppositely-wound, balanced coils placed in the homogeneous portion of the magnetic field. To eliminate effects due to magnetization of the sample holder, external pickup, vibrations of the apparatus, and fluctuations of the magnetic field, it has b ...
Magnetism
... ► Consist of a coil of wire wrapped around a soft iron core mounted so it is free to pivot in the magnetic field provided by the permanent magnet ► A torque acts on the loop in the presence of a magnetic field ► The torque on the loop is proportional to the current ...
... ► Consist of a coil of wire wrapped around a soft iron core mounted so it is free to pivot in the magnetic field provided by the permanent magnet ► A torque acts on the loop in the presence of a magnetic field ► The torque on the loop is proportional to the current ...
magnetic fields
... Any magnet, no matter what its shape, has two ends called poles. A pole is the area of a magnet where the magnetic effect is strongest. One pole of a magnet points towards magnetic north of the earth and is labeled north. The other pole is labeled south. Although magnetic forces are strongest at the ...
... Any magnet, no matter what its shape, has two ends called poles. A pole is the area of a magnet where the magnetic effect is strongest. One pole of a magnet points towards magnetic north of the earth and is labeled north. The other pole is labeled south. Although magnetic forces are strongest at the ...
Magnetic Field
... l Course website: www.pa.msu.edu/~huston/phy294h/index.html ◆ lectures will be posted frequently, mostly every day if I can remember to do so l l l l ...
... l Course website: www.pa.msu.edu/~huston/phy294h/index.html ◆ lectures will be posted frequently, mostly every day if I can remember to do so l l l l ...
Glossary
... hour, etc. When measured in cycles or rotations per unit time (e.g. revolutions per minute), it is often called the rotational velocity and its magnitude the rotational speed. Angular velocity is usually represented by the symbol omega (Ω or ω). The direction of the angular velocity vector is perpen ...
... hour, etc. When measured in cycles or rotations per unit time (e.g. revolutions per minute), it is often called the rotational velocity and its magnitude the rotational speed. Angular velocity is usually represented by the symbol omega (Ω or ω). The direction of the angular velocity vector is perpen ...
Small Dictionary of Magnetism
... be used with no significant losses up to about 500 C. They are relatively easily demagnetised, resisting oxidation well. Energy product ranges from 1.4 MGOe to about ...
... be used with no significant losses up to about 500 C. They are relatively easily demagnetised, resisting oxidation well. Energy product ranges from 1.4 MGOe to about ...
Magnetism Chapter 1 PowerPoint
... The Chinese and Greeks knew about the “magical” properties of magnets. The ancient Greeks used a stone substance called “magnetite.” They discovered that the stone always pointed in the same direction. Later, stones of magnetite called “lodestones” were used in navigation. ...
... The Chinese and Greeks knew about the “magical” properties of magnets. The ancient Greeks used a stone substance called “magnetite.” They discovered that the stone always pointed in the same direction. Later, stones of magnetite called “lodestones” were used in navigation. ...
