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1. An inductor (L = 250 mH) is connected to a varying voltage supply: a. At...
2. A 33-mH inductor is directly connected to a varying current supply. a. During a “ramp...
2. A 33-mH inductor is directly connected to a varying current supply. a. During a “ramp up” period of 40. ms, the current through the inductor increases linearly from 0.50 to 1.00 A. What is the average emf induced across the inductor during this time period? A. 0.19 V D. 0.41 V B. 0.26 V E. 0.52 V C. 0.33 V b. The self-induced emf (across the inductor) will be... A. in the same direction as the current B. opposite...
A 45-mH inductor is connected to an ac source of emf with a frequency of 250...
A 45-mH inductor is connected to an ac source of emf with a frequency of 250 Hz and a maximum emf of 20 V. If the voltage across the inductor is +20 V at time t = 0, what is the voltage at time t = 2.0 ms? A : 0 V B : −10 V C :20 V D : −20 V E : 10 V
A 15.0 mH inductor produces a peak voltage of 10.6 V. s connected across an AC...
A 15.0 mH inductor produces a peak voltage of 10.6 V. s connected across an AC generator that Part A What is the peak current through the inductor if the emf frequency is 100 Hz? Express your answer to two significant figures and include the appropriate units. HA Value IL = Units Request Answer Submit Part B What is the peak current through the inductor if the emf frequency is 100 kHz? Express your answer to two significant figures and...
An inductor with L = 9.40 mH is connected across an ac source that has voltage...
An inductor with L = 9.40 mH is connected across an ac source that has voltage amplitude 44.0 V . A) What is the phase angle ϕ for the source voltage relative to the current? B) Does the source voltage lag or lead the current? C) What value for the frequency of the source results in a current amplitude of 4.00 A ?
23. A battery is connected in series with a 3.0 S2 resistor and 12 mH inductor....
23. A battery is connected in series with a 3.0 S2 resistor and 12 mH inductor. The maximum current in the circuit is 150 mA. Find the time constant of this circuit. (a) 4 x 106 ns (b) 12 ms (c) 3 ms (d) none is correct 24. The emf of the battery in question 23 is (a) 450 mV (b) 4.5 V (c) 150 V. (d) None is correct 25. A uniform magnetic field of magnetic 0.ST is directed...
(1 point) An ideal inductor L = 116 mH is connected to a source whose peak...
(1 point) An ideal inductor L = 116 mH is connected to a source whose peak potential difference is 85 V. a) If the frequency is 110 Hz, what is the current at 6 ms? What is the instantaneous power delivered to the inductor at this time? A W b) At what frequency would the peak current be 2.4 A? Hz
AC generator connected across an inductor
The output voltage of an AC generator is given by Δv = (1.18 ✕ 102 V)sin(31?t). The generator is connected across a 0.500 H inductor. Find the following.(a) frequency of the generator Hz(b) rms voltage across the inductor V(c) inductive reactance Ω(d) rms current in the inductor A(e) maximum current in the inductor A(f) average power delivered to the inductor W(g) Find an expression for the instantaneous current. (Use the following as necessary: t.)i=2.42·sin(31πt) (h) At what time after t = 0 does the instantaneous current first reach 1.00 A? (Use the inverse sine function.) Your response differs...
(1 point) An ideal inductor L 82 mH is connected to a source whose peak potential...
(1 point) An ideal inductor L 82 mH is connected to a source whose peak potential difference is 80 V. a) If the frequency is 60 Hz, what is the current at 3 ms? What is the instantaneous power delivered to the inductor at this time? -1.103 A 88.24 W b) At what frequency would the peak current be 1.7 A? 91.34 Hz
An inductor a. passes direct current and opposes time varying current. b. passes time varying current...
An inductor a. passes direct current and opposes time varying current. b. passes time varying current and stops direct current. c. allows only magnetic field to go through it and stops any current through the coil. d. passes current whether it is time varying or direct. e. expels magnetic field through it. f. rotates if current is passed through it. Per Maxwell's first and second equations, an electromagnetic wave a. must have electric and magnetic fields perpendicular to the direction...
A 8.2-V battery is connected in series with a 38-mH inductor, a 150-Ω resistor, and an...
A 8.2-V battery is connected in series with a 38-mH inductor, a 150-Ω resistor, and an open switch.A 8.2-V battery is connected in series with a 38-mH inductor, a 150-Ω resistor, and an open switch. Part A What is the current in the circuit 0.110 ms after the switch is closed? unit (mA) Part B How much energy is stored in the inductor at this time? unit(micro J)
2. A 33-mH inductor is directly connected to a varying current supply. a. During a “ramp up” period of 40. ms, the current through the inductor increases linearly from 0.50 to 1.00 A. What is the average emf induced across the inductor during this time period? A. 0.19 V D. 0.41 V B. 0.26 V E. 0.52 V C. 0.33 V b. The self-induced emf (across the inductor) will be... A. in the same direction as the current B. opposite...
A 15.0 mH inductor produces a peak voltage of 10.6 V. s connected across an AC generator that Part A What is the peak current through the inductor if the emf frequency is 100 Hz? Express your answer to two significant figures and include the appropriate units. HA Value IL = Units Request Answer Submit Part B What is the peak current through the inductor if the emf frequency is 100 kHz? Express your answer to two significant figures and...
23. A battery is connected in series with a 3.0 S2 resistor and 12 mH inductor. The maximum current in the circuit is 150 mA. Find the time constant of this circuit. (a) 4 x 106 ns (b) 12 ms (c) 3 ms (d) none is correct 24. The emf of the battery in question 23 is (a) 450 mV (b) 4.5 V (c) 150 V. (d) None is correct 25. A uniform magnetic field of magnetic 0.ST is directed...
(1 point) An ideal inductor L = 116 mH is connected to a source whose peak potential difference is 85 V. a) If the frequency is 110 Hz, what is the current at 6 ms? What is the instantaneous power delivered to the inductor at this time? A W b) At what frequency would the peak current be 2.4 A? Hz
The output voltage of an AC generator is given by Δv = (1.18 ✕ 102 V)sin(31?t). The generator is connected across a 0.500 H inductor. Find the following.(a) frequency of the generator Hz(b) rms voltage across the inductor V(c) inductive reactance Ω(d) rms current in the inductor A(e) maximum current in the inductor A(f) average power delivered to the inductor W(g) Find an expression for the instantaneous current. (Use the following as necessary: t.)i=2.42·sin(31πt) (h) At what time after t = 0 does the instantaneous current first reach 1.00 A? (Use the inverse sine function.) Your response differs...
(1 point) An ideal inductor L 82 mH is connected to a source whose peak potential difference is 80 V. a) If the frequency is 60 Hz, what is the current at 3 ms? What is the instantaneous power delivered to the inductor at this time? -1.103 A 88.24 W b) At what frequency would the peak current be 1.7 A? 91.34 Hz
An inductor a. passes direct current and opposes time varying current. b. passes time varying current and stops direct current. c. allows only magnetic field to go through it and stops any current through the coil. d. passes current whether it is time varying or direct. e. expels magnetic field through it. f. rotates if current is passed through it. Per Maxwell's first and second equations, an electromagnetic wave a. must have electric and magnetic fields perpendicular to the direction...
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