A toroidal solenoid has 500 turns, cross-sectional area 6.25 cm2 , and mean radius 4.00 cm. (a) Calculate the coil’s self-inductance.
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A toroidal solenoid has 500 turns, cross-sectional area 6.25 cm2 , and mean radius 4.00 cm.
(a) Calculate the coil’s self-inductance.
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- For the circuit shown in the figure below, AV = 97.0 V, w = 65.0m rad/s, and L = 70.0 mH. Calculate the current in the inductor at t = 12.5 ms. max A AVmax sin at 000How many turns should a solenoid of cross-sectional area 3.9×10−2 m2 and length 0.31 m have if its inductance is to be 52 mH ? Express your answer using two significant figures.4.30 2 In the circuit the emf ɛ = 188 volts and the inductance L= 38.4 mH. What will be the magnitude of the voltage difference across the inductor at a time 14.6 ms after the switch is closed? (State answer with 1 digit right of decimal: Do not enter unit.)
- Find the cross-sectional area of an inductor with 20 turns and a length of .314 m. The resistance of the coil is .20 ohms and the time constant has been found to be 4.0ms.A toroidal solenoid has 800 turns, cross-sectional area of 16.25 cm^2, and an average radius of 14.00 cm.a) Calculate the self-inductance of the coil.b) If the current decreases uniformly from 15.00 A to 12.00 A In 3.00 ms, calculate the self-induced electromotive force in the coil.c) Current is directed from terminal a of the coil to terminal b. Is the direction of the induced electromotive force from a to b, or from b to a? Why?A solenoid with 495 turns has a length of 6.50 cm and a cross-sectional area of 3.10 x 10-9 m2. Find the solenoid's inductance and the average emf around the solenoid if the current changes from +4.00 A to -4.00 A in 6.33 x 10-3 s. HINT (a) the solenoid's inductance (in H) H (b) the average emf around the solenoid (in V) v
- Find the cross-sectional area of an inductor with 20 turns and a length of .314 m. The resistance of the coil is .20 ohms and the time constant has been found to be 4.0ms. Show the algebraic form of the equation that you use and report your answer to the correct number of significant figures.A 96-mH solenoid inductor is wound on a form 0.80 m in length and 0.10 m in diameter. Acoil is tightly wound around the solenoid at its center. The coil's resistance is 9.9 ohms. Themutual inductance of the coil and solenoid is 31 μH. At a given instant, the current in thesolenoid is 540 mA, and is decreasing at the rate of 2.5 A/s. At the given instant, what is themagnitude of the induced current in the coil? (μ0 = 4pi × 10^-7 T · m/A)A 19.0 mH inductor, an 6.00 Ω resistor, and a 9.00 V battery are connected in series. The switch is closed at t = 0. ( h) What is the maximum energy stored in the inductor?
- (a) What is the characteristic time constant of a 25.2 mH inductor that has a resistance of 4.02 N? ms (b) If it is connected to a 12.0 V battery, what is the current after 12.5 ms? AIf two coils placed next to one another have a mutual inductance of 5.06 mH, what voltage is induced in one when the 2.00 A current in the other is switched off in 29.5 ms?