Two coils have mutual inductance M = 3.25 * 10-4 H. The current i1 in the first coil increases at a uniform rate of 830 A/s. (a) What is the magnitude of the induced emf in the second coil? Is it constant? (b) Suppose that the current described is in the second coil rather than the first. What is the magnitude of the induced emf in the first coil?

Q: A solenoid with an inductance = 8.0*10^-3 H carries current of 1.0 A. The current in the solenoid…

A: Given, Inductance of solenoid L = 8 x 10-3 H Current I1 = 1A Current I2 = 0 A Time t = 0.1…

Q: A 680 loop circular armature coil with a diameter of 7.4 cm rotates at 130 rev/s in a uniform…

A: Given Number loop is N=680 Diameter of the coil is d=7.4 cm=7.4×10-2 m Angular speed is given as…

Q: Two coils are placed near each other and they have a mutual inductance of 879.1 mH. If the current…

A: mutual inductance(M)=879.1 mH=879.1×10-3H  current i(t)=0.5e-1,625.3t to find: induced emf at…

Q: The maximum value of the emf in the primary coil (Np = 1200) of a transformer is 165 V. (a) What is…

A:

Q: induced emf (in volts) in the 15-turn coil as a function of time.

A: We know that,  ε=-dϕdt......Faraday's lawwhere, ϕ is magnetic flux ε is induced emfThis law gives us…

Q: Two concentric circular coils of wire lie in a plane. The larger coil has 38 turns and a radius of a…

A: Given, The number of turns in the larger coil NL=38 turns. The radius of the larger coil RL=a=8.60…

Q: A 4.10 x 10 -5 H solenoid is constructed by wrapping 77 turns of wire around a cylinder with a…

A:

Q: Suppose that a rectangular toroid has 2,000 windings and a self-inductance of 0.060 H. If the height…

A: The energy stored in an inductor is, U=12LI2

Q: A toroidal coil has a mean radius of 16 cm and a cross-sectional area of 0.25 cm2 ; it is wound…

A: Given Data: The radius of a coil is, R=16 cm The cross-sectional area of a coil is, A=0.25 cm2 The…

Q: A coil of 15 turns and radius 10.0 cm surrounds a long solenoid of radius 1.80 cm and 1.00 x 103…

A:

Q: A circular wire coil with 29 turns and radius 1.48 cm is placed in a uniform magnetic field of…

A: The number of turns in the coil is The radius of the coil is The initial magnetic field is The final…

Q: The maximum value of the emf in the primary coil  (NP = 1600)  of a transformer is 215 V. (a) What…

A: A) 87.344B) 0.40625Explanation:

Q: A solenoid with an inductance of 14 mH is charged up from an initial current of 3.0 A to a current…

A: Given:  Inductance of the solenoid : L=14 mH =14 ×10-3 H,  Initial current = I1 = 3 A Final current…

Q: The magniotude of the emf induced in an inductor is 1.5V when the current in the inductor is…

A:

Q: The maximum value of the emf in the primary coil (Np = 1500) of a transformer is 125 V. (a) What is…

A: Np = 1500 Ns = 600 Vp = 125 V

Q: Consider the circuit shown below. The circuit contains an inductor, 10.0 mH, a 60.0 V battery…

A:

Q: A small solenoid with a radius of 12 cm and 100 turns is placed inside a long solenoid (n = 550…

A: Radius, r = 12 cm = 0.12 m Turns, N = 100 Turns per length, n = 550 turns/cm = 55000 turns/m didt =…

Q: A circular wire coil with 28 turns and radius 3.92 cm is placed in a uniform magnetic field of…

A:

Q: dI A coil with a self-inductance of 4.5 H carries a current that decreases at a uniform rate =…

A:

Q: Two coils close to each other have a mutual inductance of 23 mH. The current in one coil decays…

A:

Q: The flexible loop in the figure below has a radius of 11.0 cm and is in a magnetic field of…

A: Introduction: Faraday's second law of electromagnetic induction: It is defined as rate of change of…

Q: Coil 1 has L1 =25 mH and N1 = 100 turns. Coil 2 has L2 =40 mH and N2  200 turns. The coils are…

A:

Q: A 750-turn solenoid, 26 cm long, has a diameter of 2.5 cm. A 16-turn coil is wound tightly around…

A:

Q: A coil consists of 25 loops of wire and has a diameter of 10 cm. Its resistance is 0.1Ω. At t=0 it…

A:

Q: An electric current flows through a coil with an inductance of 15.3 mH. The graph shows the…

A: Given Inductance L = 15.3 mH = 15.3 × 10-3 H Time period of current T = 20 ms = 20 × 10-3 s Peak…

Q: When the current in a toroidal solenoid changes at a rate of0.025 A/s, the magnitude of the induced…

A: The emf induced in the solenoid coil is,

Q: In a model AC generator, a 495 turn rectangular coil 8.0 cm by 22 cm rotates at 120 rev/min in a…

A: Given data: Number of turns is N=495Area of the rectangular coil is Angular frequency Magnetic field…

Q: A 2.00-H indductor carries a steady current of 0.500A. When the switch in the circuit is opened,the…

A: L = 2.00H Steady Current (Ii) = 0.500 Amp time = 10.0 ms

Q: (a) Draw a graph of the induced EMF versus time, numerically identifying the maximum and minimum…

A:

Q: A 550-turn solenoid, 28 cmcm long, has a diameter of 2.3 cmcm . A 18-turn coil is wound tightly…

A:

Q: seconds. Find the induced emf (in volts) in the 15-turn coil as a function of time. 15-turn coil

A: Given data as per question N  =  15 I =  6sin 120t n  =  1000

Q: Measurements on a solenoid coil (inductor) at a particular instant in time indicate that the current…

A:

Q: A physics student observes that the current in a coil of conducting wire goes from i1 = 0.200 A to…

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.