Induced emf - Study guides, Study notes & Summaries

Electronic NOCTI Review WCCTC Latest 2023 Graded A+ Permanent Magnets- Readily retain their magnetic field for a long period of time Temporary Magnets- lose magnetism quickly Two types of magnets- Metallic Magnets & Ceramic Magnets Two Popular Classifications- Alcino & Cunife Coulomb's Law- Like poles repel and unlike poles attract Flux Lines- Lines of magnetic force that surround a magnet Four Basic Rules & Characteristics: 1. Flux lines have direction or polarity(N+S) 2. The lines o for...

Inductance - correct answer is the property of the coil of a wire that opposes a change in current in an electromagnetic device False (Len's Law) States - correct answer (True/False) Ohm's Law states that when voltage is initially applied to a coil, the induced voltage opposes the source voltage. Low - correct answer When voltage is initially applied to a coil, current is Counter EMF - correct answer The induced voltage that opposes any change in current is called Greatest - c...

Dale Crane's Oral and Practical Exam Guide: General; Material and Processes Questions And Answers What constitutes a capacitor? - ANSWER- -Two conductors separated by an insulator -In its most basic form the capacitor is constructed of two parallel plates separated by a nonconductor, called a dielectric. (FAA-H-8083-30, Ch. 10) What is the purpose of a capacitor? - ANSWER- -It Stores electrical energy in a electrostatic field. -In an electrical circuit, a capacitor serves as a reser...

niobium-titanium - ANSWER-Most commonly used conductor wires. Has critical temperature of 10K (-442F). Liquid Helium is used to cool the wires - cooled to 4K. Field Map - ANSWER-Shows field strength. Greatest at isocenter. 5G Line - ANSWER-0.5 mT. Must be in an area of controlled access. May not be in Zone IV. Spatial Gradient Map - ANSWER-Shows change in field strength over distance (dB/dx) Shielding - ANSWER-Passive: Metal (usually iron) in walls. Active: additional coils i...

Inductance correct answersis the property of the coil of a wire that opposes a change in current in an electromagnetic device False (Len's Law) States correct answers(True/False) Ohm's Law states that when voltage is initially applied to a coil, the induced voltage opposes the source voltage. Low correct answersWhen voltage is initially applied to a coil, current is Counter EMF correct answersThe induced voltage that opposes any change in current is called Greatest correct answersC...

A-Level Physics Paper 2 Definitions 100% Correct internal energy the sum of the random distribution of kinetic and potential energies of molecules specific heat capacity the energy required to heat 1kg of a substance by 1 degree without a change of state latent heat of fusion the energy required to change 1kg of a solid to a liquid without a change in temperature latent heat of vapourisation the energy required to change 1kg of a liquid to a gas without a change in temperature Boyle's law p...

Static field metrics - 1T = 10,000G (0.5mT = 5G) Who published guidelines titled "Criteria for Significant Risk" that specifies what qualifies as significant risk of exposure to magnetic field associated with MRI. - FDA FDA guidelines state EXPOSURE to a static field that does not pose a significant risk is: - Limited to 8T for adults and infants > 1 month Limited to 4T for infants < 1 month Forces related to static field - -Torque/rotation -Translation/Displace...

1d collisions head on collisions sticking together ANSWER: mv - mv = collective mass x v 1d collisions in the same direction not sticking together ANSWER: mv + mv = mv + mv 1d collisions in the same direction sticking together ANSWER: mv + mv = collective mass x v 1d explosions ANSWER: mv + 0 = collective mass x v 1d recoil ANSWER: 0 = mv + mv Gun velocity will be negative as it is going back 2d collisions ANSWER: Total momentum in vertical component Total momentum...

absolute zero Lowest possible temperature, 0K, object has minimum internal energy. acceleration Change of velocity per unit time. 00:31 01:24 activity of radioactive isotope Number of nuclei of the isotope that disintegrate per second. Becquerel (Bq) Unit of radioactive activity, 1Bq = 1 disintegration per second. amplitude Maximum displacement from equilibrium of oscillating object. angular displacement Angle an object in circular motion turns ...

Physics 1402 Final Exam Practice (Questions with Answers) 2023 Latest Graded. How much work must we do on an electron to move it from point A, which is at a potential of +50 V, to point B, which is at a potential of -50 V, along the semicircular path shown in the figure? - answer1.60 x 10^-17 J After a proton with an initial speed of 1.50 x 10^5 m/s has increased its speed by accelerating through a potential difference of 0.100 kV, what is its final speed? - answer2.04 x10^5 m/s An air-fill...