Recent content by copresh1
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How to design a 3 phase induction motor
there is no fan invovled here( sorry i shud have mentioned)the cleansing media is steam and directed directly from a steam manifold.how do i go ahead?- copresh1
- Post #3
- Forum: Introductory Physics Homework Help
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How to design a 3 phase induction motor
I am trying to do a project on electrical engineering which involves design of electrical circuitry for a soot blower arrangement.i am having problems in designing a motor( 3phase induction motor). i know how to calculate the rotor parameters,losses, efficiency,etc. i am told that i have to find...- copresh1
- Thread
- 3 phase Design Induction Induction motor Motor Phase
- Replies: 3
- Forum: Introductory Physics Homework Help
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How do you calculate relative permeability in a loud speaker?
sorry for the delay in responding the value i get for relative permeability is 238734.802 i will scan and attach the method that i have followed to solve the prob till now.- copresh1
- Post #6
- Forum: Introductory Physics Homework Help
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How do you calculate relative permeability in a loud speaker?
using f=BLI i found B=100T next i used S=L/mew0*crosssectional area of air gap(L=10mm,c/sarea airgap=piD=3.14*0.001) =2533029.59A/wb next using H=IN/L(I=100mA,N=50,L=15mm this assumed) =333.33A/m but when i go to find relative permeabilty i am getting a...- copresh1
- Post #4
- Forum: Introductory Physics Homework Help
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How do you calculate relative permeability in a loud speaker?
F=BLI where B is flux density,L is length of conductor, and I is the current in the conductor. magnetic field density=magnetic flux/c/s area magnetic flux=mmf/reluctance & reluctance=lenght of airgap/mew0 * c/s A- copresh1
- Post #3
- Forum: Introductory Physics Homework Help
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How do you calculate relative permeability in a loud speaker?
i am a bit confused as to where to start on this problem, any hint will be appreciated.(problem attached)- copresh1
- Thread
- Speaker
- Replies: 5
- Forum: Introductory Physics Homework Help
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Zobel network in parallel with a speaker
attached diagram- copresh1
- Post #7
- Forum: Introductory Physics Homework Help
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Zobel network in parallel with a speaker
i have derived the desired result. the second part of the problem(see atached)i do not know where to start.- copresh1
- Post #6
- Forum: Introductory Physics Homework Help
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Zobel network in parallel with a speaker
i have drawn the phasor diagram ( which i will upload later). from the phasor diagram i can say that iLsin thetha=iCsin thetha- copresh1
- Post #4
- Forum: Introductory Physics Homework Help
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Zobel network in parallel with a speaker
it is a RC series connected in parallel with RL.- copresh1
- Post #3
- Forum: Introductory Physics Homework Help
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Zobel network in parallel with a speaker
a zobel network consisting of a capacitor C and resistance Rc is connected in parallel to a speaker of inductance L and resistance Rl.show that frequency at resonance =1/2pi*Sq rt 1/LC(Rlsquare-L/C ÷ Rc square-L/C) i have begun by equating the reactive components of the branch currents...- copresh1
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- Network Parallel Speaker
- Replies: 6
- Forum: Introductory Physics Homework Help
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Min voltage rating of capacitor
i was solving a prob the foll prob on electrical resonance. a resistance is connected in series with an inductor which inturn is connected to 2 capacitors(capacitors are in parallel w.r.t each other, and one of them is trimming capacitor).the circuit is now connected to a relay whose...- copresh1
- Thread
- Capacitor Voltage
- Replies: 1
- Forum: Introductory Physics Homework Help
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Magnetic Compass Needle: Remanence & Airgap Effects on AC Performance
advantages:the core can be magnetized further disadvantages:lowers the efectiveness by inc the reluctance- copresh1
- Post #19
- Forum: Introductory Physics Homework Help
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Magnetic Compass Needle: Remanence & Airgap Effects on AC Performance
it flatens the curve ie its a straight line- copresh1
- Post #17
- Forum: Introductory Physics Homework Help
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Magnetic Compass Needle: Remanence & Airgap Effects on AC Performance
flatens it out- copresh1
- Post #16
- Forum: Introductory Physics Homework Help