LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 2. Calculate the energy required to charge in air a metallic sphere of radius 2m to a potential of 3000 volts. 3. Define Peltier coefficient. 4. State Kirchoff’s laws of current electricity. 5. State Biot –Savart’s law. 6. Determine the magnetic intensity at a distance of 10 cm due to a long straigh ...
... 2. Calculate the energy required to charge in air a metallic sphere of radius 2m to a potential of 3000 volts. 3. Define Peltier coefficient. 4. State Kirchoff’s laws of current electricity. 5. State Biot –Savart’s law. 6. Determine the magnetic intensity at a distance of 10 cm due to a long straigh ...
Electromagnetic Induction
... • We already know current produces magnetic fields. • Michael Faraday wanted to know if magnetic fields could induce current. • He placed a wire loop, which was part of a closed circuit, into a magnetic field. • When the wires moves up, the current is in one direction. • When the wires moves down, ...
... • We already know current produces magnetic fields. • Michael Faraday wanted to know if magnetic fields could induce current. • He placed a wire loop, which was part of a closed circuit, into a magnetic field. • When the wires moves up, the current is in one direction. • When the wires moves down, ...
HSPS3-5
... Students will understand that many devices they use, contain electromagnets. Studnets will have a concept of rating a magnet alogn with the production of electromagnets etc. Sample Assessments: The units which can align to create a magnet are called ...
... Students will understand that many devices they use, contain electromagnets. Studnets will have a concept of rating a magnet alogn with the production of electromagnets etc. Sample Assessments: The units which can align to create a magnet are called ...
PPT - Mr.E Science
... Magnetic Poles – the ends of the magnet, area where the magnetic effect is the strongest. If a bar magnet is suspended by a thread or string, it will align itself so that one strong end points north and the other points south, hence the names for the “North” and “South” poles of the magnet. Like pol ...
... Magnetic Poles – the ends of the magnet, area where the magnetic effect is the strongest. If a bar magnet is suspended by a thread or string, it will align itself so that one strong end points north and the other points south, hence the names for the “North” and “South” poles of the magnet. Like pol ...
Chapter 11 Magnetism & Electromagnetism Magnets
... is the strongest. If a bar magnet is suspended by a thread or string, it will align itself so that one strong end points north and the other points south, hence the names for the “North” and “South” poles of the magnet. Like poles of separate magnets repel – push away from – each other ...
... is the strongest. If a bar magnet is suspended by a thread or string, it will align itself so that one strong end points north and the other points south, hence the names for the “North” and “South” poles of the magnet. Like poles of separate magnets repel – push away from – each other ...
Magnets
... Magnetic Poles – the ends of the magnet, area where the magnetic effect is the strongest. If a bar magnet is suspended by a thread or string, it will align itself so that one strong end points north and the other points south, hence the names for the “North” and “South” poles of the magnet. Like pol ...
... Magnetic Poles – the ends of the magnet, area where the magnetic effect is the strongest. If a bar magnet is suspended by a thread or string, it will align itself so that one strong end points north and the other points south, hence the names for the “North” and “South” poles of the magnet. Like pol ...
Combustion Equation
... • Draw the current (+ve to –ve); apply the left hand rule and then draw in the direction of force (motion) ...
... • Draw the current (+ve to –ve); apply the left hand rule and then draw in the direction of force (motion) ...
Maxwell`s Equations (4)
... magnetic field is almost symmetric with the above equation. We often call it Maxwell's law of induction after James Clerk Maxwell, and we write it as: ...
... magnetic field is almost symmetric with the above equation. We often call it Maxwell's law of induction after James Clerk Maxwell, and we write it as: ...
Electromagnetism
... Hans Christian Ørsted However, Ørsted didn’t suggest an explanation nor derive a mathematical expression to describe his observations. Despite this, Ørsted published his findings, and is credited with proving that electric current produces a magnetic field. ...
... Hans Christian Ørsted However, Ørsted didn’t suggest an explanation nor derive a mathematical expression to describe his observations. Despite this, Ørsted published his findings, and is credited with proving that electric current produces a magnetic field. ...
Chapter 7: Magnetism and Its Uses
... A compass is a device consisting of a tiny bar magnet that is free to rotate When a compass is placed near a magnet, the needle will align with the field lines of the magnet The Earth acts like a huge bar magnet, so a compass needle will align with the Earth’s magnetic field line and the need ...
... A compass is a device consisting of a tiny bar magnet that is free to rotate When a compass is placed near a magnet, the needle will align with the field lines of the magnet The Earth acts like a huge bar magnet, so a compass needle will align with the Earth’s magnetic field line and the need ...
Class16review
... Magnetoresistance? • Charges traveling through magnetic field experience magnetic force (provided velocity and field are not aligned): FB = qv x B = (if v perpendicular to B) qvB • In a current-carrying wire, this force results in more frequent collisions and thus an increased resistance: Magnetores ...
... Magnetoresistance? • Charges traveling through magnetic field experience magnetic force (provided velocity and field are not aligned): FB = qv x B = (if v perpendicular to B) qvB • In a current-carrying wire, this force results in more frequent collisions and thus an increased resistance: Magnetores ...
Electricity and Magnetism
... more massive than electrons, but carry an amount of positive charge equal to the negative charge of electrons ...
... more massive than electrons, but carry an amount of positive charge equal to the negative charge of electrons ...
Hall effect
The Hall effect is the production of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and a magnetic field perpendicular to the current. It was discovered by Edwin Hall in 1879.The Hall coefficient is defined as the ratio of the induced electric field to the product of the current density and the applied magnetic field. It is a characteristic of the material from which the conductor is made, since its value depends on the type, number, and properties of the charge carriers that constitute the current.