4.30 2 3. L In the circuit the emf ɛ = 19.5 volts and the inductance L= 107 mH. What will be the energy in Joules in the magnetic field closed? (State answer with 3 digits right of decimal. Do not enter unit.) the inductor 13.2 ms after the switch is ll

Q: An inductor with an inductance of 7.50 H and a resistance of 8.00 ohms is connected to the terminals…

A: a)The required rate of electrical energy just after circuit is completed is,

Q: An induced EMF of 16 V exists in a coil when the current in the coil changes at a rate of 42 A/s.…

A: Given data: Induced EMF is, e=16 V. Rate of change of current is, dIdt=42 A/s.

Q: The time variation of the current in a 3H inductor is given by I=5+7t-7t^2, with I in amperes and t…

A:

Q: An emf of 9.7mV is induced in a coil while the current in a nearby coil is decreasing at a rate of…

A:

Q: A coil of resistance 15Ω and inductance 0.6H is connected to a 120V D.C. line.  At what rate will…

A: (a) The expression for the current flowing through the inductor in RL circuit is written as, Here,…

Q: A solenoid of radius 4.5 cm has 540 turns and a length of 15 cm. (a) Find its inductance. |mH (b)…

A: L=μ0N2A2πr=μ0N2πr22πr=μ0N2r2=4π×10-7 H/m54020.045 m2=8.24×10-3 H1 mH10-3 H=8.24 mH

Q: The current (I) takes 5 ms to reach 90% of its max value. The inductance (L) of the coil is equal to…

A:

Q: A direct current of 25A creates a flux of 1.4 X 10-4 Wb in a coil of 500 turns.  What is the…

A: Given that, Current I = 25 A Flux ϕ=1.4×10-4 Wb Number of turns = 500

Q: The self-inductance of a coil is 50 mH. What is the emf induced when the current in the coil…

A:

Q: What is the inductance of a coil if the coil produces an emf of 2.86 V when the current in it…

A:

Q: A physics student notices that the current in a coil of conducting wire goes from / = 0.200 t 2 1.50…

A: induced emf is given by ∈=-Ldidt=-Li2-i1t2-t1t2-t1=0.250 seci2=1.50 Ai1=0.200 AL=3 mH=3×10-3 H

Q: Find the inductance of an RL circuit if the resistance is 0.5?and the current increases to ¼ of tis…

A: resistance (R) = 0.5 ohm Time (t) = 1.5 seconds Current = Imax4

Q: At t = 0, an emf of 500 V is applied to a coil that has an inductance of 0.800 H and a resistance of…

A: Values given in the question are as follow; ε=500 VR=30 ΩL=0.8 H Maximum current; Io=εRIo=500…

Q: A solenoid of radius 4.5 cm has 620 turns and a length of 15 cm. (a) Find its inductance.  mH (b)…

A:

Q: An emf of 8V is induced in a given coil when the current in it changes at the rate of 32 A/ sec.…

A: Given data:   Induced emf, ε=8V    Current, dIdt= 32 A/sec

Q: A lab tech observes that the current in a coil of conducting wire goes from i, At = 0.200 s.…

A: By general definition the voltage in in an inductor is defined as E = L di/dt  .L = Inductance di =…

Q: The time for the current in the resistor of an RL circuit, in units of ms, to reach -63% of its…

A: Given:-  The resistance R = 513 ohm  The inductor L = 87.3 mH  Find:-  The time for the current in…

Q: 4.30 2 3. In the circuit the emf e 19.5 volts and the inductance L 107 mH. What will be the energy…

A: Given: The emf of the battery is 19.5 V. The inductance of the inductor is 107 mH. The time interval…

Q: 4.30 2 3. In the circuit the emf ɛ = 190 volts and the inductance L= 34.6 mH. What will be the…

A:

Q: A solenoid of radius 1.50 cm has 620 turns and a length of 25.0 cm. (a) Find its inductance. mH (b)…

A: Write the given values with the suitable variables. r=1.50 cm=1.5×10-2 mN=620l=25 cm=0.25 mε=90…

Q: An emf of 0.70 V is induced across a coil when the current through it changes uniformly from 0.45 to…

A: Given data:  Emf (e) = 0.70 V Initial current = 0.45 A Final current = 0.55 A Time (t) = 0.40 s…

Q: An emf of 121.5 mV is induced in the windings of a coil when the current in a nearby coil is…

A: The formula for the induced emf in term of mutual inductance is:

Q: 9. An inductor carries a current of 2.5 A, and the magnetic energy stored in the inductor is 0.0035…

A:

Q: Suppose that a rectangular toroid has 1, 600 windings and a self-inductance of 0.070 H. If h = 0.13…

A:

Q: A 4-79 permalloy solenoid coil needs to produce a minimum inductance of 1.5 Wb/m2 . If the maximum…

A:

Q: How many turns should a solenoid of cross-sectional area0.035 m2 and length 0.32 m have if its…

A: The solenoid’s cross-sectional area is, The solenoid’s length is, The inductance of a solenoid is,

Q: A 50.0 mH inductor is connected to an acgenerator with e=30.0 V.What is the amplitude of the…

A: a) The equation for the current amplitude is given by,

Q: A0.2 H inductor and a 146 Ohm resistor are connected to a 12 V battery. After how much time will the…

A:

Q: At time t =0, a 45 V potential difference is suddenly applied to the leads of a coil with inductance…

A: The equation for the current is given by,

Q: A series RL circuit includes a 8.05 V8.05 V battery, a resistance of ?=0.655 Ω, and an inductance of…

A:

Q: what isthe current in the circuit after 1 μsec?

A: The equation for the current here is

Q: A loop of wire has a self-inductance of 5.5 mH.  You pass a current of 9.0 Amps though the loop, and…

A: Given Self- Inductance of loop                                    ( L) = 5.5 mH = 5.5 × 10-3 H…

Q: The current through a coil as a function of time is represented by the equation I(t) = Ae-bt…

A:

Q: A pair of adjacent coils has a mutual inductance of 1.5 H. If the current in one coil changes from 0…

A:

Q: The inductance of a closely packed coil of 400 turns is 8.0 mH. Calculate the magnetic flux through…

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.