Low Frequency Cheap Filter/Iductor
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*low frequency Inductor/filter
*High power storage
*Easy insertion,low loose
*Used in various electronic and industry products
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- Q: A 24 mH inductor is connected to a outlet where the rms voltage is 123 V and thefrequency is 60 Hz.Determine the energy stored in the inductorat t 5.2 ms, assuming that this energy iszero at t 0.Answer in units of J.Please help!!!
- Energy stored in the inductor 1/2 L * I^2
- Q: How does inductor respond to DC?How does inductor respond to AC?
- It limits the current when the DC is first turned on. Once the circuit has stabilized, it has no effect. To AC it presents an impedance equal to XL 2πfL .
- Q: An 8.0 mH inductor and a 2.0 ohm resistor are wired in series an ideal battary. A switch in the circuit is closed at a time 0 sec. at which time current is zero the current reaches half its final value at a time of ofThe answer is 2.8 ms, How?????
- Let Vo be the voltage across the battery and VL be the voltage across the inductor then for your circuit: VL Vo e-(tR/L) If you divide both sides by R you get the current relationship instead (Ohms law) VL/R Vo/R e-(tR/L) this equals:- I Io e-(tR/L) or you can simply start with this line instead. for the current to reach half its value I/Io 1/2 I/Io e-(tR/L) 1/2 e-(tR/L) Now, to get rid of the exponential part we take NATURAL logs (ln on your calculator) of both sides giving:- ln(1/2) -(tR/L) this gives t as:- t-L/R ln(1/2) t -[(8x10^-3)/2 x (-0.6931) t 0.00277 t 2.8 ms
- Q: 6. An inductor opposes an instantaneous change in its own voltage? 7. Xc is the AC opposition to current flow? 8. Xc grows smaller as the frequency is increased in a circuit 9. Inductor and capacitor currents are 360 degrees out of phase? 10. XL is the AC opposition to current flow? 11. The term impedance, applied to a circuit with capacitors and resistance is the phasor sum or result of the resistance and capacitive reactance.12. impedance z is defined as the total opposition to voltage in an AC circuit.13. The current always leads the voltage in a series resistor capacitor circuit by 45 degrees.15. When a sinusoid voltage is applied to an RC circuit, the current and all the voltage drops are also sine waves.16. Total current in an RC circuit always leads the source voltage.
- An inductor opposes an instantaneous change in its own voltage? FALSE 7. Xc is the AC opposition to current flow? not entirely TRUE - Xc is one form of opposition to alternating current flow, but the total opposition to ac current is the impedance which is given the symbol Z. 8. Xc grows smaller as the frequency is increased in a circuit TRUE : Xc 1 / ( 2 π f C ) 9. Inductor and capacitor currents are 360 degrees out of phase? FALSE in a series circuit they are in phase with one another, in a parallel circuit the two currents are (approximately) in antiphase i.e. 180° out of phase 10. XL is the AC opposition to current flow? not entirely TRUE - XL is one form of opposition to alternating current flow, but the total opposition to ac current is the impedance which is given the symbol Z. 11. The term impedance, applied to a circuit with capacitors and resistance is the phasor sum or result of the resistance and capacitive reactance. More or less TRUE. In a series CR circuit the impedance is the phasor sum of capacitive reactance and resistance, but that is not true for a parallel connection. 12. impedance z is defined as the total opposition to voltage in an AC circuit. FALSE. Z is may be described as the total opposition to CURRENT flow, but that description is not really rigorous enough to constitute a formal definition. 13. The current always leads the voltage in a series resistor capacitor circuit by 45 degrees. FALSE It is only true if the resistance is EQUAL TO the capacitive reactance. 15. When a sinusoid voltage is applied to an RC circuit, the current and all the voltage drops are also sine waves. TRUE (provided that the sinusoidal voltage is the only applied voltage and adequate time has elapsed for any transients to decay to a negligible level) 16. Total current in an RC circuit always leads the source voltage. Only true if the source voltage is alternating. Not true if the applied voltage is a constant dc level.
- Q: A capacitor C 4.7×10-9 F is connected across a 2.7 mH inductor. What is the natural oscillation frequency of the combination?
- The natural frequency of oscillation (w) is the frequency at which the reactance of the cap equals that of the inductor: w*L 1/(w*C) w sqrt(1/L*C) f 1/{2*pi*sqrt(LC)} 44.68kHz
- Q: If a series RC, RL, or resistor-inductor-capacitor (RLC) circuit was given to you in a black box (with access only to the two input terminals), how could you determine the component values?
- w 2pi*f 2pi*60 377 rad/s Z R + j(wL - a million/wC) the place j sqrt(-a million) (in case you do no longer comprehend this line, pass directly to the subsequent) |Z| sqrt[R^2 + (wL - a million/wC)^2] |Z| sqrt{4.84e4 + [377*27e-6 - a million/(377*16e-6)]^2} sqrt[4.84e4 + (a million.02e-2 + a million.66e2)^2] 275.6 ohms (word thet the inductor seems especially very like purely a chew of cord with L0) Then rms i one hundred twenty/275.6 0.435A answer
- Q: If the current through an inductor were doubled, the energy stored in the inductor would be1. doubled.2. the same.3. halved.4. quartered.5. quadrupled.
- E 0.5 L i^2 the energy would be increased by 2^2 or quadrupled answer 5
- Q: Calculate the inductance of an air-core coil with the following specifications: length 20 cm, #of turns 200 and diameter of core 2 cm.Could you show your work if you know how to do it? Thanks :)
- See: okorder
- Q: I meant the shock literally, it's one of the question I need to answer.
- An ideal capacitor, when charged has a voltage built up in it. It searches for path to discharge. When a person gets in contact with it, its contacts are closed and hence closed path is formed through human body resulting in an electric shock. Where as in an inductor,its property is to oppose sudden change in current. But an inductor can not store the energy when no current is passing through it. So the severity of shock depends on the current flowing through inductor when connected in an electric circuit and in the same way in case of a capacitor severity depends on voltage rating of the capacitor. So severity of both cannot be compared.
- Q: A homework question for my Electromagnetic Fields and Waves course asks, How would you build a 0.1H inductor? I am extremely stuck! I have researched and tried to figure this out but I am having no luck. My classmates are having trouble as well. Please help!
- There okorder
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1. Manufacturer Overview
| Location | Shenzhen, Guangdong, China (Mainland) |
| Year Established | 2006 |
| Annual Output Value | US$2.5 Million - US$5 Million |
| Main Markets | North America; South America; Eastern Europe; Southeast Asia; Africa; Oceania; Mid East; Eastern Asia; Western Europe; Central America; Northern Europe; Southern Europe; South Asia; Domestic Market |
| Company Certifications | CE Certificates |
2. Manufacturer Certificates
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| Range | |
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3. Manufacturer Capability
| a) Trade Capacity | |
| Nearest Port | Shekou,Yantian |
| Export Percentage | 51% - 60% |
| No.of Employees in Trade Department | 3-5 People |
| Language Spoken: | English, Chinese |
| b) Factory Information | |
| Factory Size: | 3,000-5,000 square meters |
| No. of Production Lines | 9 |
| Contract Manufacturing | OEM Service Offered Design Service Offered Buyer Label Offered |
| Product Price Range | Average |
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Low Frequency Cheap Filter/Iductor
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1000 Pieces pc
- Supply Capability:
- 10000 Pieces per Month pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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