Nguyen_Lab1

In the experiment No.4, the core loss component current is given by_________________________ IC Cosϕ0 I0 Sinϕ0 I0 Cosϕ0 IC Sinϕ0

Magnetic field   Need to make an illustration (identifying the variables)

How many holes are there in a conductor?Please select one:a.Same number as free electronicsb.Only those produced with thermal energyc.Manyd.None

Besides the number of turns and the legth of active conductor, whit of the following is?are a factor which affects the amount of emf(voltage) induced in a coil? A) how fast the conductor is moving through  the field(rate of incidence), B) the strength of the magtnetic field(flux density), C) the angle at which the conductor is cutting the magnetic field( angle of incidence), D) all of the above What is mean by genarator regulation? A) it is the percentage rise in terminal voltage from no-load to full-load, B) it is the percentage rise in terminal voltage full-load to no-load, C) it is the amount of control one has over the terminal voltage by way of the field excitation, D) none How are transformer components indetified? The algebraic symboly for the number of kilovolt-amperes on the load side of the transformer is_____. A) KVAh, B) KVAx, C) KVA-primary, D) KVA-secondary

Figure 1 shows a ferromagnetic core with a relative permeability of 1850, the depth of the core is 10 cm. The air gap on the core is 0.2 cm with effective area 5 % larger than their physical size due to fringing effects. Given the number of turns N = 500 and current i = 2 x, where x is the last digit of your student ID (example: EEE1705590, then i = 20 A): (a) Find the total reluctance of the core and air gap. [CLO1-PL01:C2] (b) Find the flux density of the air gap. [CLO1-PLO1:C2] 13 cm 23 cm 9 cm 5.6 сm Air gap 31 cm N turns 7 cm Figure 1

Q. 15. What of the following is true about corona discharge? A. Appears only in uniform fields. C. Accompanied by a hissing noise B. The most common form is glow discharge D. All of the above Q. 16. The best gas mixture for circuit breakers of the following is: C. Air and Sfe A. Air and hydrogen B. Sfs and N₂ Hi D. N₂ and hydrogen

Q / Explain with the drawing how to charge an insulated and electrically neutral sphere with a negative charge using the induction method

Choose the correct answer. *Please answer it ASAP if you can

electromagnetic theory

The diameter of cylindrical conductor A is 6mm, and its length is 2m. The diameter and length of cylindrical conductor B is 0.02. Determine resistance of conductor A, its temperature being the same as that of B.

Determine the inductance per unit length of a coaxial cable with an inner radius a andouter radius b

MENT OF EDI 3. A long, straight conductor carries a current of 8.0 A and is directed to the right. What is the magnitude of the magnetic field produced by the current-carrying wire 2.0 m from the wire? (See figure below) Draw the magnetic field to determine the direction of the field at the specified point P. RICHA AS SACY

Conductive wire on a rectangular ferrite toroid pulley1000 turns of tightly wound. 5A current flows in the conductor wire.Toroid with hoop 1.5cm, inner radius 3cm, outer radius 4cmand its magnetic permeability is 5000Mo. Core of toroid coilFind its inductance.

Which is the below statements best describes why the diamagnetic susceptibility of a 20 diamagnetic material is negative? O a. diamagnetic effects result from oppositely aligned magnetic moments of unequal sizes, causing an overall negative magnetic moment. O b. diamagnetic effects result from domains of electrons within the material which align with one another, but are oppositely aligned to neighbouring domains, causing a negative overall field. O c. diamagnetic effects result from spatial inhomogeneity in the polarisation within a material. O d. diamagnetic effects result from induced currents which act to oppose the change causing them, thus acting in the opposite direction to the applied field.

Explain briefly various theories of breakdown in liquid dielectrics.

5. A conductor 800 mm long moves across a uniform magnetic field with its axis making 35⁰ with the direction of the magnetic is 10,000 lines/in² and a voltage of 45 V appears across the conductor. Determine the velocity of the field. The flux density conductor in m/sec. 6. A periodic voltage has the following voltages: 15 V at 0.02 sec, 9 V at another 0.05 sec and 0 V for another 0.02 sec, the

A copper conductor is connected in parallel with twice its length of aluminum conductor. The resistivity of copper is (0.0159 µ0. m) and that of aluminum is (0.0254 µ0. m). If the diameter of the aluminum is (10 mm). Determine the necessary diameter of the copper conductor in order that each conductor will carry the same current.

Solve the question with complete solution.Use the conversion 1 Coulomb = 6.25E10^18 e- or p+, read as 1 Coulomb is equal to 6.25 times 10 raised to 18 no. of electrons or protons. For exponents, follow "E10^".

Answer item 6 only! This is complete.

Answer item 5 only!

(a) Conductive plates are on the top and bottom face of the rectangular structure in Figure 4(a). (b) Conductor plates are on the front and back of the rectangular structure in Figure 4(a). (c) Conductive plates are on the top and bottom face of the cylindrical structure in Figure 4(b). How would the capacitance be calculated if the conductive plates were on the right and left surfaces in Figure 4(a)?

I need a solution very quickly within

An AWG #10 copper conductor has an 80.8-mil diameter. A 50-foot long conductor of this type carries a current of 30 A. Find the electric field intensity E, drift velocity U, the voltage drop, and the resistance for the 100-foot length.

35_ An infinitely long conductor is bent into an L shape as shown in Figure. If a direct current of 3 A flows in the conductor, the magnetic field intensity (H) at (0, - 2, 0)? a) 0.159az b) 0.1989 az c) 0.11934az d) 0.07956az