- Kendriya Vidyalaya Durg
... No work is done in moving a test charge over an equipotential surface, why? It requires 50 μJ of work to carry a 2 μC of charge from a point A to B. What is the potential difference between these points? Which point is at higher potential? 5. The electric field at a point due to a point charge is 30 ...
... No work is done in moving a test charge over an equipotential surface, why? It requires 50 μJ of work to carry a 2 μC of charge from a point A to B. What is the potential difference between these points? Which point is at higher potential? 5. The electric field at a point due to a point charge is 30 ...
magnetic circuit with air gap
... If the air gaps is small, the fringing effect can be neglected. So ...
... If the air gaps is small, the fringing effect can be neglected. So ...
Physics 203 Sample Exam 1
... (a) constant electric and magnetic fields. (b) oscillating electric and magnetic fields in the same direction. (c) electric and magnetic fields at various angles. (d) oscillating electric and magnetic fields at right angles. [8] Magnetic fields can be produced by (a) electric currents (b) changing e ...
... (a) constant electric and magnetic fields. (b) oscillating electric and magnetic fields in the same direction. (c) electric and magnetic fields at various angles. (d) oscillating electric and magnetic fields at right angles. [8] Magnetic fields can be produced by (a) electric currents (b) changing e ...
Charge to Mass Ratio for the Electron
... OBJECTIVE: To measure the ratio of the charge of an electron to its mass. METHOD: A stream of electrons is accelerated by having them "fall" through a measured potential difference. This stream is projected into a uniform magnetic field which is perpendicular to the velocity vector of the electrons. ...
... OBJECTIVE: To measure the ratio of the charge of an electron to its mass. METHOD: A stream of electrons is accelerated by having them "fall" through a measured potential difference. This stream is projected into a uniform magnetic field which is perpendicular to the velocity vector of the electrons. ...
Electric Circuits - Physics-with-T
... • Just like motion, energy is measured in Joules • Energy = Power * Time – 1 Joule = 1 watt * 1 second – Your parents are billed for the energy used in kilowatt hours ...
... • Just like motion, energy is measured in Joules • Energy = Power * Time – 1 Joule = 1 watt * 1 second – Your parents are billed for the energy used in kilowatt hours ...
split up syllabus class xii final 1
... 7. To estimate the charge induced on each one of the two identical styrofoam (or pith) balls suspended in a vertical plane by making use of Coulomb's law. ...
... 7. To estimate the charge induced on each one of the two identical styrofoam (or pith) balls suspended in a vertical plane by making use of Coulomb's law. ...
Physics O Level Notes 2
... PHYSICS notes o General physics • The density of an object only changes when the substance is heated or cooled. • An object sinks if its density is more than the liquid on which it is placed on, but floats if less dense. • When there is no air resistance the acceleration of any object is constant (c ...
... PHYSICS notes o General physics • The density of an object only changes when the substance is heated or cooled. • An object sinks if its density is more than the liquid on which it is placed on, but floats if less dense. • When there is no air resistance the acceleration of any object is constant (c ...
20-7 Transformers and the Transmission of Electricity
... What is a transformer good for? In general, transformers are used to change the voltage from a wall socket into a different voltage, which could be higher or lower, for use by a particular device. Some devices, such as microwave ovens and cathode ray tube televisions, require higher voltages than th ...
... What is a transformer good for? In general, transformers are used to change the voltage from a wall socket into a different voltage, which could be higher or lower, for use by a particular device. Some devices, such as microwave ovens and cathode ray tube televisions, require higher voltages than th ...
Unit 2 content
... Electric Fields • The field does work on charged objects • Charges accelerate •W=QxV ...
... Electric Fields • The field does work on charged objects • Charges accelerate •W=QxV ...
Experiment to verify Faraday’s Law of Electro-Magnetic- Induction 7EM
... - why the signal generator is set to “triangle” output and why you must maintain a constant peak voltage - why resistor R is needed - how your results verify Faraday’s law (assuming that they do !) Your report should also include a diagram showing what you saw on the oscilloscope screen. 4. The expe ...
... - why the signal generator is set to “triangle” output and why you must maintain a constant peak voltage - why resistor R is needed - how your results verify Faraday’s law (assuming that they do !) Your report should also include a diagram showing what you saw on the oscilloscope screen. 4. The expe ...
Experiment - TerpConnect
... ln(a2+x2). If you have accurately located the center of the coil, your plot will be a straight line. If not, it will curve back on itself. Use this information to make any necessary adjustments to your determination of the coil center. A.3: Fit the data using LinFit and plot the fitted curve along w ...
... ln(a2+x2). If you have accurately located the center of the coil, your plot will be a straight line. If not, it will curve back on itself. Use this information to make any necessary adjustments to your determination of the coil center. A.3: Fit the data using LinFit and plot the fitted curve along w ...
Electromagnetism: Home
... strength of the field. As long as you wrap it in the same direction, the field will continue to increase with each additional coil. Question 3: What would happen if we used a larger voltage source? We would be increasing the current and would thus have a more powerful electromagnet by Ampere’s law. ...
... strength of the field. As long as you wrap it in the same direction, the field will continue to increase with each additional coil. Question 3: What would happen if we used a larger voltage source? We would be increasing the current and would thus have a more powerful electromagnet by Ampere’s law. ...
Physics_A2_41_BackEMF
... resistance). Little power used In contrast a loaded motor will spin with a low speed, the induced back EMF will be low and the resulting current is high. Power is transferred from the voltage source to mechanical power in the load and wasted heat due to resistance ...
... resistance). Little power used In contrast a loaded motor will spin with a low speed, the induced back EMF will be low and the resulting current is high. Power is transferred from the voltage source to mechanical power in the load and wasted heat due to resistance ...
Exercises in Statistical Mechanics
... Exercises in Statistical Mechanics Based on course by Doron Cohen, has to be proofed Department of Physics, Ben-Gurion University, Beer-Sheva 84105, Israel This exercises pool is intended for a graduate course in “statistical mechanics”. Some of the problems are original, while other were assembled ...
... Exercises in Statistical Mechanics Based on course by Doron Cohen, has to be proofed Department of Physics, Ben-Gurion University, Beer-Sheva 84105, Israel This exercises pool is intended for a graduate course in “statistical mechanics”. Some of the problems are original, while other were assembled ...
Section 32: Electromagnetic Effects 1
... CiE iGCSE Physics 0625 Learning Plan Section 32: Electromagnetic Effects 1 Specification Resources 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 demonstra ...
... CiE iGCSE Physics 0625 Learning Plan Section 32: Electromagnetic Effects 1 Specification Resources 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 demonstra ...
Coilgun
A coilgun (or Gauss rifle, in reference to Carl Friedrich Gauss, who formulated mathematical descriptions of the magnetic effect used by magnetic accelerators) is a type of projectile accelerator consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity. In almost all coilgun configurations, the coils and the gun barrel are arranged on a common axis.Coilguns generally consist of one or more coils arranged along a barrel, so the path of the accelerating projectile lies along the central axis of the coils. The coils are switched on and off in a precisely timed sequence, causing the projectile to be accelerated quickly along the barrel via magnetic forces. Coilguns are distinct from railguns, as the direction of acceleration in a railgun is at right angles to the central axis of the current loop formed by the conducting rails. In addition, railguns usually require the use of sliding contacts to pass a large current through the projectile or sabot but coilguns do not necessarily require sliding contacts. Whilst some simple coilgun concepts can use ferromagnetic projectiles or even permanent magnet projectiles, most designs for high velocities actually incorporate a coupled coil as part of the projectile.