Teaching & Academics Online Course by Udemy, On Sale Here
Complete AP Physics-Magnetism, AC, Optics, EMI. Covers Portion for IB Diploma SL/HL, Cambridge(AS, A Level),US, Grade11 & 12th
An excellent training about Science
PHYSICS-High School & AP Physics-Magnetism, EMI, AC, Optics-18hr
Master the High School and AP Physics curriculum First time – guaranteed expertise (or money back) @ students seeking PHYSICS MAGNETISM ALTERNATING CURRENTWave Optics-IB Diploma SL/HL Cambridge (AS, A LEVEL – Further),CBSE Bonus -RAY opticsUS/INTERNATIONAL-11TH AND 12THThis Course will make students confident in working with information and ideas their own and those of others responsible for themselves, responsive to and respectful of others reflective as learners, developing their ability to learn innovative and equipped for new and future challenges engaged intellectually and socially, ready to make a differenceCoverage: Magnetic fieldsMagnetic forceElectromagnetic induction(HL ONLY)Electromotive force (emf)Magnetic flux and magnetic flux linkageFaraday’s law of inductionLenz’s lawHow to: Describe the forces between magnets, and between magnets and magnetic materials Give an account of induced magnetism Distinguish between magnetic and non-magnetic materials Describe methods of magnetisation, to include stroking with a magnet, use of direct current (d.c.) in a coil and hammering in a magnetic field Draw the pattern of magnetic field lines around a bar magnet Describe an experiment to identify the pattern of magnetic field lines, including the direction Distinguish between the magnetic properties of soft iron and steel Distinguish between the design and use of permanent magnets and electromagnetsExplain that magnetic forces are due to interactions between magnetic fields Describe methods of demagnetisation, to include hammering, heating and use of alternating current (a.c.) in a coilElectromagnetic induction Core Show understanding that a conductor moving across a magnetic field or a changing magnetic field linking with a conductor can induce an e.m.f. in the conductor Describe an experiment to demonstrate electromagnetic induction State the factors affecting the magnitude of an induced e.m.f.Show understanding that the direction of an induced e.m.f. opposes the change causing it State and use the relative directions of force, field and induced currenta.c. generator Core Distinguish between d.c. and a.cDescribe and explain a rotating-coil generator and the use of slip rings Sketch a graph of voltage output against time for a simple a.c. generator Relate the position of the generator coil to the peaks and zeros of the voltage output4.6.3 Transformer Core Describe the construction of a basic transformer with a soft-iron core, as used for voltage transformations Recall and use the equation (Vp /Vs ) = (Np /Ns ) Understand the terms step-up and step-down Describe the use of the transformer in highvoltage transmission of electricity Give the advantages of high-voltage transmission Describe the principle of operation of a transformer Recall and use the equation IpVp = IsVs (for 100% efficiency) Explain why power losses in cables are lower when the voltage is high4.6.4 The magnetic effect of a current Core Describe the pattern of the magnetic field (including direction) due to currents in straight wires and in solenoids Describe applications of the magnetic effect of current, including the action of a relayState the qualitative variation of the strength of the magnetic field over salient parts of the pattern State that the direction of a magnetic field line at a point is the direction of the force on the N pole of a magnet at that point Describe the effect on the magnetic field of changing the magnitude and direction of the current4.6.5 Force on a current-carrying conductor Core Describe an experiment to show that a force acts on a current-carrying conductor in a magnetic field, including the effect of reversing: the current the direction of the fieldSupplement State and use the relative directions of force, field and current Describe an experiment to show the corresponding force on beams of charged particles4.6.6 d.c. motor Core State that a current-carrying coil in a magnetic field experiences a turning effect and that the effect is increased by: increasing the number of turns on the coil increasing the current increasing the strength of the magnetic fieldSupplement Relate this turning effect to the action of an electric motor including the action of a split-ring commutatorMagnetic DipoleMagnetic dipole is an arrangement of two unlike magnetic poles of equal pole strength separated by a very small distance, e.g, a small bar magnet, a magnetic needle, a current carrying loop etc. Magnetic Dipole MomentThe product of the distance (2 l) between the two poles and the pole strength of either pole is called magnetic dipole moment. Magnetic dipole momentM = m (2 l)Its SI unit is joule/tesla or ampere-metre2. Its direction is from south pole towards north pole. Magnetic Field Due to a Magnetic Dipole(1) On Axial LineIf r > > l, thenB = o / 4 2M / r3(ii) On Equatorial LineB = o / 4 M / (r2 + l2)3 / 2If r > > l, thenB = o / 4 2M / r3Torque Acting on a Magnetic DipoleWhen a Magnetic Dipole (M) is placed in a uniform magnetic field (B), then a Torque acts on it, Which is given by = M * Bor = M
Udemy is the leading global marketplace for learning and instruction
By connecting students all over the world to the best instructors, Udemy is helping individuals reach their goals and pursue their dreams.
Study anytime, anywhere.
Reviews
There are no reviews yet.