10th CBSE {SA - 1} Revision Pack Booklet - 4
... Magnetic Effects of Current 1. The flow of current in a circular wire creates a magnetic field at its centre. How can existence of this field be detected? State the rule which helps to predict the direction of this magnetic field. Solution: The existence of magnetic field can be detected by magnetic ...
... Magnetic Effects of Current 1. The flow of current in a circular wire creates a magnetic field at its centre. How can existence of this field be detected? State the rule which helps to predict the direction of this magnetic field. Solution: The existence of magnetic field can be detected by magnetic ...
Basic law in Magnetostatics
... magnitude but opposite in direction to the force on C2 due to C1. ...
... magnitude but opposite in direction to the force on C2 due to C1. ...
Draft - NYU Steinhardt
... The materials that an object is made up of determine some of its properties. We know that a cork, which comes from a tree, will float in water, but a metal iron nail will sink. Another property of an iron nail is its attraction to a magnet, but not all metals have this magnetic property. Neither a c ...
... The materials that an object is made up of determine some of its properties. We know that a cork, which comes from a tree, will float in water, but a metal iron nail will sink. Another property of an iron nail is its attraction to a magnet, but not all metals have this magnetic property. Neither a c ...
1. (i) iron 1 for 1 mark (ii) 20 2 gains 2 marks else working gains 1
... use a coil with more turns or increase loops of wire or more coils use a stronger magnetic field or magnet or magnets closer together wind coil onto an iron core rotate coil faster reduce resistance of the coil or bulb or circuit or use thicker wire or increase ...
... use a coil with more turns or increase loops of wire or more coils use a stronger magnetic field or magnet or magnets closer together wind coil onto an iron core rotate coil faster reduce resistance of the coil or bulb or circuit or use thicker wire or increase ...
Seventh Grade Science Lesson Plans Week 23
... Product Target 4.6: Conduct an investigation that provides evidence that fields exist between objects exerting forces on each other even though they are not in contact. ...
... Product Target 4.6: Conduct an investigation that provides evidence that fields exist between objects exerting forces on each other even though they are not in contact. ...
Page 1 - Madeley High School
... This plug contains a transformer. There are 4600 turns on its primary coil and 200 turns on its secondary coil. The plug is used on the mains supply and has a potential difference (p.d.) of 230 V across its primary coil. Use the equation in the box to calculate the p.d. across the secondary coil of ...
... This plug contains a transformer. There are 4600 turns on its primary coil and 200 turns on its secondary coil. The plug is used on the mains supply and has a potential difference (p.d.) of 230 V across its primary coil. Use the equation in the box to calculate the p.d. across the secondary coil of ...
Force between magnets
Magnets exert forces and torques on each other due to the complex rules of electromagnetism. The forces of attraction field of magnets are due to microscopic currents of electrically charged electrons orbiting nuclei and the intrinsic magnetism of fundamental particles (such as electrons) that make up the material. Both of these are modeled quite well as tiny loops of current called magnetic dipoles that produce their own magnetic field and are affected by external magnetic fields. The most elementary force between magnets, therefore, is the magnetic dipole–dipole interaction. If all of the magnetic dipoles that make up two magnets are known then the net force on both magnets can be determined by summing up all these interactions between the dipoles of the first magnet and that of the second.It is always more convenient to model the force between two magnets as being due to forces between magnetic poles having magnetic charges 'smeared' over them. Such a model fails to account for many important properties of magnetism such as the relationship between angular momentum and magnetic dipoles. Further, magnetic charge does not exist. This model works quite well, though, in predicting the forces between simple magnets where good models of how the 'magnetic charge' is distributed is available.