The maximum allowable potential difference across a 230 mH inductor is 300 V. You need to raise the current through the inductor from 1.2 A to 3.5 A Part A What is the minimum time you should allow for changing the current? Express your answer to two significant figures and include the appropriate units. μÅ 4 ? tmin = Value Units
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- A transformer is used to provide voltage to a neon sign. The input voltage is 120 V and the output voltage is 600 V. The number of turns on the primary coil of the transformer is 300. The current supplied to the transformer is 2.5 A. What is the number of turns on the secondary coil and the current used in the neon sign? a. The number of turns in the secondary coil is 240 and the current in the sign is 2.5 A b. The number of turns in the secondary coil is 60 and the current in the sign is 2.5 A c. The number of turns in the secondary coil is 240 and the current in the sign is 0.5 A d. The number of turns in the secondary coil is 60 and the current in the sign is 0.5 A e. The number of turns in the secondary coil is 1500 and the current in the sign is 0.5 AThe figures below show six circuits which consist of identical ideal batteries, resistors, and inductors. All of the switches are closed at the same time. Rank the circuits based on the current through the battery a very long time after the switch is closed. Rank from largest to smallest. To rank items as equivalent, overlap them.Please Asap
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- The current in the RL circuit shown below reaches half its maximum value in 0.5 ms after the switch S1 is thrown. Determine (a) the time constant of the circuit and (b) the resistance of the circuit if L = 200 mH. R Hints a. The time constant is TL = ms. b. The resistance R is Ω.4 The circuit given to the right has been on for a long time. a. Determine the energy stored in the capacitor. 12 mH 16 k2 18 k2 15 V 1.5μF. 9k 2 b. Determine the energy stored in the inductor. c. Determine how high you could lift a 1.0mg object on Earth if you could convert all of the capacitor's and inductor's stored energy into gravitational potential energy.78. A In the RC circuit shown in Figure FOR P29.78, an ideal battery with emf CHEST E and internal resistance r is con- no bruta 101 nected to capacitor C. The switch OTU S is initially open and the capacitor noilor is uncharged. At t = 0, the switch 20 is closed. srit word or abs gnizu dmod odi unslaviups 15/vol S ε reutills α.— himmisiob of W+0.000 21 d I f es bspar 21251 in 152 s ban a. Determine the charge q on the capacitor at time t. Tro b. Find the current in the branch b-e at time t. What is the the 1569 € 210121231 910 current as t goes to infinity? 100% www r b e digi Div ST 0 R + 20, 251 29gnado 101000 9.00 V bilov adi tol noia201qzs FIGURE P29.77 5.00 265 Ω www STEVO R www.c FIGURE P29.78 poses. 79. N A 12.0-V battery is used to cho **** 21 memisa M.ET C - - с d b bes 19lbbig
- The solenoid shown in the diagram has 5 loops per centimeter and a cross sectional area of 0.3 m². The resistor has the resistance of 2 Ohm. When the switch is closed, the current in the solenoid increases at the rate of 200 A/s. Find the current through the resistor. RAn inductor has a peak current of 300 μA when the peak voltage at 39 MHz is 2.5 V. You may want to review (Page 914). For help with math skills, you may want to review: Rearrangement of Equations Involving Multiplication and Division 1 Rearrangement of Equations Involving Multiplication and Division 2 ▼ ▼ Part A What is the inductance? Express your answer using two significant figures. VE ΑΣΦ L= 3.4007 10¯5 Submit Previous Answers Request Answer Part B BOY X Incorrect; Try Again; One attempt remaining Submit Previous Answers Request Answer If the voltage is held constant, what is the peak current at 78 MHz ? Express your answer using two significant figures. ΠΨΕ ΑΣΦ 12 1.5 107 ? ? X Incorrect; Try Again; One attempt remaining ΜΗ μAAn LC circuit has a 7.00 mH inductor. The current has its maximum value of 0.580 A at t = 0s. A short time later the capacitor reaches its maximum potential difference of 70.0 V Part A What is the value of the capacitance? Vp ΑΣφ. ? µF