A solenoid with an inductance of 14 mH is charged up from an initial current of 3.0 A to a current of 7.0 A in a time of 0.12 s. What is the magnitude of the self-induced EMF in the solenoid? a. 0.73 volts b. 0.22 volts C. .0.13 volts d. 0.34 volts e. 0.47 volts

Q: The energy stored in a solenoid inductor is 28.4 J. The solenoid is .876 m long and has a radius of…

A:

Q: A 90 mH inductor carries a current that varies with time according to... i(t) = t²+6t (in A with t…

A: Given that-The inductance of the inductor, L= 90mHCurrent, it= t2+ 6tEMF will induce in the coil due…

Q: 2.0kA of current at 500 volts is produced by a generator. A transformer is used to step up the…

A: Given data: The current in the primary coil is Ip= 2.0 kA   =2.0×103  A The voltage in the primary…

Q: 820 winding wire coil with resistance of 24 n wrapped around a 7 cm long solenoid with 12500…

A:

Q: 1. A 30 cm long metal rod rotates about the z-axis at 100 revolutions per minute, with end 1 fixed…

A: Given data, Magnetic field B=2×10-4 T Length l=30 cm=0.3 m Speed N = 100 rpm

Q: In one laboratory experiment to investigate energy stored in an inductor, a 125 V power supply is…

A: Given V= 125 VC= 250 pF = 250 x 10-12 FL=225 mH =225 x 10-3 H

Q: If i,(t) = 10 u(t)A a. i̟(0~) =? b. i(t) =?

A: The given circuit is a combination of all passive component viz. Resistance, Inductance and…

Q: 4. A 6.0W ideal transformer is plugged into a 120 VAC wall outlet. The primary coil of the…

A: See below

Q: A loop of wire (Area of loop = 0.02 m², plane of loop in x/y plane) enters a region of space with a…

A: Faraday's Second Law of Electromagnetic Induction: It states that induced emf (e) in a closed loop…

Q: A solenoid has a length of 30.0 cm and cross-sectional area 0.750 cm?, contains 500 turns and…

A: Given: Length of solenoid, l=30.0 cm Cross  sectional area , A=0.750 cm2  Number of turns, N= 500…

Q: Consider an airplane below. When it is moving with a speed of 225 m/s, how much the emf induced…

A: Given: The speed of the plane is 225 m/s. The distance between wings is 60 m. The strength of the…

Q: Emk e = 400V, resistor R = 104 number of 100, switch S and a toroid of N = turns are connected in…

A:

Q: The magnetic flux through a 100 turn coil changes from 0.0273 Tm² to 0 in 0.824 s. What emf is…

A: Given Data The number of turn of coil is:N=100 turns The change in magnetic flux is:dφ=0.0273…

Q: When is the circuit purely magnetic? A. When fully charged B. When capacitor is fully…

A: The circuit consists of a capacitor and an inductor.Write the expression for the energy stored in…

Q: A 32.0 [] resistor, a 0.40 [H] inductor, and a 20.0 [F] capacitor are connected in series to form an…

A:

Q: 16. The magnetic flux through three different coils is changing as shown in Figure P21.160. For each…

A:

Q: a L A current I is flowing through an inductor. At time t = 0, the current is zero and at time t 1s…

A: Answer  option(c) point a

Q: At time t-0, the switch is closed. What is the current thru the inductor L after a long time? O 3.0A…

A:

Q: 2. Mr. Lewis loves electronics so much, one night after having a cup of coffee he decided to make an…

A:

Q: 10-turn ide ould chang zero 5.0 A/s 50 A/s 250 A/s 500 A/s S.

A: Given: Number of turns (N)=10emf=2.0VL=4.0mH=4×10-3H formula for self induced emp produced in same…

Q: A 5.00 [cm] long solenoidal inductor has 50 turns and radius of 3.00 [cm]. If the current varies at…

A:

Q: Camera flashes charge a capacitor to high voltage by switching the current through an inductor on…

A: Initial current I = 0.26 A E = 515 V L = 2.7 mH = 0.0027 H Final current = 0 A

Q: A step-down transformer has double the amount of primary windings compared to the secondary…

A: Comparing number of primary winding to secondary winding; Current through primary winding

Q: 4. An inductor of inductance 0.45 H has a current in the direction shown of 2.0 Amperes. This…

A:

Q: When the current in an inductor decreases from I to 0.5 I then the energy stored in the inductor…

A: please see the next step for solution

Q: Problem 8: Consider a 150 turn square loop of wire 19.5 em on a side that carries a 56 A current in…

A:

Q: A given solenoid has a 5 H self-inductance. Calculate for the magnitude of the induced electromotive…

A:

Q: R www S₁ S₂ L 0000 (a) E -0000 (b) 1(t) E 0000 (c) 1(t)

A: A 12.0V battery is connected to a 20.0 Ohm resistor and a 50.0H inductor as shown in the figure…

Q: An inductor used in a de power supply has an inductance of 12.0 H and a resistance of 180 ohms. It…

A: Here inductance = L = 12.0 H resistance = R =180 ohms. current = I = 0.50 A. We have to calculate…

Q: 3. Consider the circuit shown below. The switch S is closed for a very long time so that the current…

A:

Q: An emf of 9.7 x 10-3 V is induced in a coil while the current in a nearby coil is decreasing at a…

A: Given that-EMF of a coil, ε=-M×dIdt          ..... Equation 01 where, ε is the EMF of the coil,M is…

Q: As current stabilizes in the inductor at 10A over 0.1 seconds, how much is the induced emf in the…

A:

Q: 40. A solenoid of length 15.0 cm with 2500 turns is placed coaxially in side the solenoid. The…

A:

Q: In the circuit shown, the switch S is closed at time t=0. a) Find the current in the 100 2 resistor…

A:

Q: Find the induced emf in the wire at time t=0? A. Zero V B. 0.5 V C. 5 V D. 0.05 V

A: Magnetic flux φ=B.A.cosθ Where B is the magnetic field,A is the area of the loop and θ is the angle…

Q: The induced e.mf in a circuit always oppose the decay or growth of magnetic flux. This statement is…

A: Required : Law related to the statement.

Q: γVV C 3.3 k2 Find the Current through R5 2.5 A R1 R R3 IA R6 R2 ww Rs Write the Kirchoff's loop…

A:

Q: You have a solenoid with a known self-inductance of 10.0 H. You measured an duced EMF of 2.00 V…

A: When current flows through solenoid, magnetic flux is associated with the solenoid. Magnetic flux…

Q: Upward Coil diameter = 40 cm Coil connected in battery Downward Coil length = 2 cm BATTERY

A: Given, Diameter of coil, D=40cm=0.4m Length of coil, l=2cm=0.02m Current, dI=10A Time interval, d…

Q: When the current in a solenoid uniformly increases from 3.0 A to 8.0 A in a time 0.25 s, the induced…

A:

Q: An inductor can store an energy 0.4 J. The current carried by the wire is 10A. What is its…

A: Given data, Energy stored in inductor E = 0.4 J. Current flowing through inductor i = 10 A.

Voltage Across Inductor

An actor is a passive electrical component that consists of a coil bent in the form of wire which uses electromagnetism to produce electric current through the coil. When the electric current flows through a conductor that is the coil, a magnetic flux is developed around the conductor. This flow of current through the coil creates a magnetic field based on Fleming's Right-hand thumb rule. If there is any decrease in the current passing through the inductor, then the magnetic field will also decrease and energy is released through the generation of electric current. There is also a secondary voltage inducing in the same coil due to the magnetic flux, since it opposes any changes in the electric current flowing through the circuit. An inductor is also called choke, coil, or solenoid. A choke is designed to block certain frequencies when the DC current passes. A winding coil is coated with insulation to give extra insulation and protect the circuit. They are usually tightly wrapped around a central core which is cylindrical in nature so that the magnetic flux can be induced. The solenoid is a three-dimension coil that is used to exhibit electromagnetism when the magnetic field is developed due to the current flowing through the coil. The sign convention of the inductor is the same as the power dissipating device. When the current flows into the positive side of the voltage across the inductor, the value is positive and the inductor dissipates power whereas when the inductor releases the power back to the circuit, the current has a negative sign convention.