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Explain the use of magnets and magnetism in tape recorders. -how tape recorders work? -what is the purpose of magnets in tape recorders? -What is the physics concept of magnetism?

In the textbox below, using your ideas of forces, partial charges or electrons, distortions, energy, and interactions, draw AND explain how permanently electretized fibers in the N95 mask attract particles of all sizes. What causes the particles to approach the electretized fibers? (Hint: this is the essence of what your

Aa - AaBbCcl AaBbCcl AaBbC 1. Av 1 Normal 1 No Spac. Title Editing Dictate Sensitivity Editor Reuse Pick Files Imag Paragraph Styles Voice Sensitivity Editor Reuse Files Picki 5. A PMMC voltmeter with a resistance of 10 ohms gives has a coil of effective depth of 3 mm and a width of 2.5 cm, the coil has about 100 turns. The flux spread in the air gap is of 10mWb/m. The spring has a constant of 2 x 10 Then calculate, Deflection torque produced by the coil, when it is connected to 20V to measure. ii. Deflection made by the pointer, when the meter is to measure a voltage of 10V i. ed States) DFocus

Q2: Define the following permanent magnet equivalent circuit terminology: a) The normal curve. b) The maximum energy product. c) Normal demagnetization curve. d) Relative recoil permeability. e) Permeance coefficient. Please answer in detail so that you are understandable. with many thanks

I have the answer i want explanation for this. Can you explain the reason behind this...only text work else downvote is ready.

help me provide a picture of a device that is used everyday with the concept of this image. And explain the mechanism and principles of the device's operation

Please answer quickly

What are the primary dimensions of electric voltage (E)? (Hint: Make use of the fact that electric power is equal to voltage times current.) When performing a dimensional analysis, one of the first steps is to list the primary dimensions of each relevant parameter. It is handy to have a table of parameters and their primary dimensions. We have started such a table for you in which we have included some of the basic parameters commonly encountered in fluid mechanics.add to this table. You should be able to build up a table with dozens of parameters

Stop ducking the question and just answer it. Number 14 letter a.

. What is the purpose of a discharge device used in conjunction with opening a highly inductive circuit?a) to minimize the possibility of damage to the circuits insulation as a result of a high induced voltage b) to minimize the possibility of endangering the life of the person opening the controlling switch c) to allow the magnetic field to gradually collapse, thus limiting the value of the self-induced ernf d) all of the above

Processing Questions:1. What can you predict about the polarities of charges? Why?2. What happens when you move the two balloons near each other after rubbing?3. What is the role of electron transfer in electrostatic charging by rubbing?

B2. Determine the resistance of an aluminium coil of 1.4 cm as diameter consists of 15600 turns and the mean length per turn is 43 cm. Take the electrical resistivity aluminium coil as 0.018 μ0-m. The area in cm² is The total length in m is The resistance of the coil in 2 is

Explain the working principles of laser printers. assume you are designing a printer, which formulas do you need to know for electrostatic calculations.

. A coil has a resistance of 18 Q when its mean temperature is 20°C and of 20 Q when its mean temperature is 50°C. Find its mean temperature rise when its resistance is 21 N and the surrounding temperature is 15° C.(pts) B. An armature has a resistance of 0.2 Q at 150°C and the armature Cu loss is of 55°C If a, for Cu is

Solve only "d" part.

Consider the solenoid shown in the figure below, which is typical of those commonly used as actuators for mechanisms and for operating valves in chemical processes. (Figure 1) Figure N-turn coil Cylindrical steel shell boooo00000 0000000000 xk 0000000000 0000000000 < 1 of 1 1, Movable plunger Cross-section of plunger Part A Neglect fringing and the reluctance of the core. Derive an expression for the flux as a function of the physical dimensions, , the number of turns N, and the current. Express your answer in terms of the variables po, N, I, d, lg, x, L, and the constant T. 6 = IVE ΑΣΦ | 11 Submit Request Answer vec www Review ?

Flowing wind has a. 72 percent of carbon dioxide b. Constant kinetic energy c. Variable kinetic energy d. 21 percent of moisture

(a) A 100 mA DC ammeter has an internal structure shown in Figure Q2(a) below. Given that the PMMC has an internal resistance of 20 2 and gives a 100-degree full scale deflection when carrying a current of 10 mA. PMMC 100mA Rs Figure Q2(a) (i) Find out the value of resistance, Rs. (ii) Calculate the deflecting torque produced at full scale deflection if it has a spring constant, k = 11 x 10 Nm/rad. (iii) Explain briefly why the existence of damping torque is important in any indicating instrument. State TWO methods to produce damping torque.

Please computerize. Don't write. Answer a, b, c

What is Lenz's law and derive its formula.

Q2: Define the following permanent magnet equivalent circuit terminology: a) The normal curve. b) The maximum energy product. c) Normal demagnetization curve. d) Relative recoil permeability. e) Permeance coefficient.Twal was sent back to solve the two branches (d and e)

Electrical Enginnering _ Energy Conversion System Notes : pls solve in less than 30 min.

Within magnetic circuits, most of the structures are composed of a high-quality material permeability, which has the functionality to cause the magnetic flux to be directed to paths" Pre" delimited by this material structure. Within the electromechanical energy conversion processesw e find the application of magnetic materials in a multitude of devices and devices, and knowt he concepts that govern the operation of an apparatus or machine are part of the study regarding conversione lectromechanical energy. We know that transformers and electrical machines use materialsf erromagnetics to direct the magnetic flux and shape this “pre-established” magnetic field.K nowing this, you, engineer (a), should design a magnetic circuit consisting of a stack of ringsw ith a height of 2 cm wrapped around 65 turns. Consider an air gap area of ​​0.2 cm. Rings have radiusi nternal of 3.4 cm and the outer radius of couples rings is 4 cm. Suppose the magnetic flux present without materialf erromagnetic…

An aluminum wire of unknown length has a diameter of .382 cm. and a resistance of .295 ohm. By several successive passes through drawing dies the radius of the wire is reduced to .078 CM. has increased by 23.6 % in the drawing process, calculate the Assuming its resistivity resistance of the reduced size wire.

Q4. Why thermalizing neutrons in a fission reactor is important? Present a mathematical derivation supporting the claim that water is an effective moderator for a fission reactor.

Make graphs of induced voltage vs. time in each of the following cases.  Draw each graph below and explain briefly. a) A stationary magnet lying in a stationary coil. b. Holding the coil stationary, moving the magnet horizontally in and out of the coil. c) Moving the magnet and the coil as a unit, back and forth horizontally d. Holding the magnet stationary, and moving the coil in and out horizontally.e. Does it matter which moves ? What would happen if they both move towards each other? Explain.d) Holding the magnet stationary, and moving the coil in and out horizontally.

A fuse wire of circular cross-section has a radius of 0.8 mm. The wire blows off at a current of 8A. Calculate the radius of the wire that will blow off at a current of 1 A. Also calculate the Value of blow off current when radius is 0.5 mm

Q4.Evaluate the Maximum power point and the efficiency of the module if the area of the Solar module 0.924m by 2.0m and gives a current at maximum power point is 7.46A and voltage at maximum power point is 26.68 V.The power density of the module is 900w.

Q5) W. bridge at state of balance when first arm 1000, second arm 2000, third arm 1002 and forth arm 20002. If we put resistance 50 on the forth arm to be 2005o, when the sensitivity of the Galvanometer 0.5 mm/uA. This Galvanometer can be discover the state of unbalance if the source value is 5 volt.(right or wrong?)

Questions Q1) what is meant by Insolation, ARC in solar systems? Q2) mention the types of solar systems? Q3) explain with drawing the main components of solar system. Q4) explain with equations the intuitive technique for design pv/battery system. Q5) Discuss all the results in Tables (1 to 3). Q6) Referring to Tables (4) & (5); draw & discuss the relations: 1. (I VS THD of current), 2. (V Vs Q).