Electronic Transformer 120V 12V

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: DC/AC Solar Power Inverter/ DC AC Inverter 600W High Efficiency 12V/24V/36V/48/120V Input
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: LFP Battery Energy Storage System SLA60 Power 60W SLA60 Charge 5V 12V~18V Electronic Devices
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: Power Inverter DC11-15V AC100-120V, AC220V
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: UL Certificate 120V M5 LED Christmas Holiday Decorative Light String
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Hello,i need some help solving this one. i'm kind of lost of which formula to apply. Thanks so much for your help. Answer Key (B) A 45-mH inductor is connected to an ac source of emf with a frequency of 400 Hz and a maximum emf of 20 V. The maximum current is:A) 0B) .018 AC) 1.1 AD) 360 AE) 2300 A: The reactance (XL) of an inductor is given by: XL 2πfL where f is the frequency in Hz and L is the inductance in henrys. XL 2π * 400 * 45/1000 XL 113 ohms Now it is just Ohm's Law i v / XL i 20 / 113 i 0.177 A i ≈ 0.18 A { I suspect a typo for answer (B) it should be 0.18 A }s

An inductor 2H is connected in series with a bulb with resistance 5ohms and 9v dc power supply and a time constant of 0.4sWhat is the voltage across the light bulb after 0.5s. ??: Current (V/R)*(1 - e^(-t/T)) where t time, T time constant After 0.5 seconds I (9/5)*(1 - e^(-0.5/0.4)) Voltage current*resistance I*5 9*(1 - e^(-0.5/0.4)) Over to you and your calculator!s

A 1E-6 F capacitor has a charge of 10.0 microC. It is connected to a 1.0 H inductor at t 0. What is the potential energy of the capacitor and the potential energy of the inductor at t 1 second?: The angular velocity (omega) here sqrt(1/LC) sqrt(1/(1x10^-6*1) 1000 rad/s Q0 10^x10^-6C Now the charge on a capacitor in an LC oscillator q Q0*cos(omega*t) 10.x10^-6*cos(1000*1) 5.62x10^-6C So the energy q^2/2C (5.62x10^-6)^2/(2*1x10^-6) 1.58x10^-5J Now the current i -omega*Q0*sin(omega*t) -1000*10x10^-6*sin(1000) -0.00827A Energy in an inductor 1/2*l*i^2 1/2*1.0*(0.00827)^2 3.42x10^-5Js

How much DC current flows through a resistor-inductor series circuit after the inductor has fluxed (i.e., after the transient)?: At an 'infinite' time after applying a DC source, the current will settle to a value determined by the resistance of the inductor a la ohms law. But if its an ideal inductor, the current will simply continue to ramp up linearly for evers

Hi,i need help here;: L 2 henry and R 1/3 ohm Since the switch was in the A position for a long time before it was switched to the B position at t 0, there is no current in the inductor at t 0+ At t 0+, 1 amp V/1Ω + (1/L)(∫ Vdt) The voltage across the inductor will be V(t) 1(e^ -(t/τ) for 0+ ≤ t 2 seconds where τ L/1Ω L since the resistor is 1Ω The current through the inductor will be i (t) (1 - e^-(t/τ) amps from 0+ ≤ t 2 seconds where τ L/1Ω L since the resistor is 1Ω At t 2- seconds i (2-) (1 - e^-(2/L) amps (1 - e^-(1)) since t/τ 2/L 1 at t 2-, L must be 2 Henry At t 2 seconds the switch is thrown back to A. The inductor current will be i( t2+) (1 - e^-1)(e^-(t/τ) where τ L/R 2/R i(6) (1 - e^-1)(e^-(6/τ) (1 - e^-1)(e^-(1) so 6/τ 1 6/(2/R) 3R R 1/3 ohms

A circuit is composed of a 35.0 ohm resistor and a 0.250 Henry inductor in series, powered by an AC source with frequency of 30.0 Hz. The resulting peak current is 0.100 A. a) What is the peak voltage of the resistor?b) What is the peak voltage of the inductor?c) What is the peak voltage of the power source?Please explain how to solve this to me, Thanks!!: a) Resistor peak voltage is VRp Ip * R 0.1A * 35 ohm 3.5 V b) Inductor reactance at f 30Hz is XL 2pi*30Hz*0.25H 47.1 ohm Inductor peak voltage is VLp Ip * XL 0.1A * 47.1 ohm 4.71 V c) Total series circuit impedance is Z sqrt(R^2 + XL^2) 58.7 ohm Source peak voltage is Vp Ip * Z 0.1A * 58.7 ohm 5.87 Vs

a) oscillatesb) makes x-raysc) is uselessd) shorts out one or bothe) stops all current: It will oscillate and form a series filter.s

current of 72.7A is measured, what is the rms voltage (V) of the source?: V/I impedance omega x L, where L is the inductance. omega 2 x pi x frequency. It is a pretty big current source if it can supply over 70 amps. The voltage is enormous, as Steven, below shows. Over 100 000 voltss

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