Shrinking Loop. A circular loop of flexible iron wire has an initial circumference of 160 cm , but its circumference is decreasing at a constant rate of 10.0 cm/s due to a tangential pull on the wire. The loop is in a constant uniform magnetic field of magnitude 1.00 T , which is oriented perpendicular to the plane of the loop. Assume that you are facing the loop and that the magnetic field points into the loop.

Q: The switch in the R-C circuit shown is initially set to position A which the capacitor charges up.…

A: Given that: V=20 VR1=2 kΩ=2000 ΩR2=5 kΩ=5000ΩC=5μF=5×10-6 F

Q: A generator produces 21.0 V when turning at 870 rev/min. What emf does it produce when turning at…

A: emf induced = 21 V when the coild turns at 870 rev/min New angular speed = 510 rev/min Let the…

Q: The heating coils in a hair dryer are 0.800 cm in diameter, have a combined length of 1.00 m, and a…

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Q: A 20.0 V emf is applied to a coil with an inductance of 40.0 mH and a resistance of 0.500 Ω. a)…

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Q: The time constant of an RL circuit is 47 μs. If L = 4.7 mH, calculate R.

A: Time constant = 47us. Inductance = 4.7x10(-3) H

Q: Problem 7: A conducting rod spans a gap of length L = 0.075 m and acts as the fourth side of a…

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Q: Calculate the peak voltage of a generator that rotates its 200 turn, 0.100 m diameter coil at 3600…

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Q: In a single-loop coil, the flux is given by Φ=3 sin t + 5 cos t. What is the magnitude of the…

A: Induced emf may be defined as  the rate of change of flux with respect to time.  If E be induced emf…

Q: A simple ac generator consists of a coil with 10 turns (each turn has an area of 50 cm^2). The coil…

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Q: The current in an RL circuit builds up to one-third of its steady-state value in 6.82 s. Find the…

A: Given Current I = I03 Time t      = 6.82 s Find the inductive time constant, as following below.

Q: Problem 8: Suppose a large power plant generates electricity at 12.0 kV. Its old transformer once…

A: Part (a)Find the relation between current, power and voltage.

Q: A 50 Hz AC generator's 1m x 2m coil with 100 turns is in a uniform magnetic field of 0.1 T. What is…

A: A 50 Hz AC generator's 1m x 2m coil with 100 turns is in a uniform magnetic field of 0.1 T. What is…

Q: A 5.0-cm-diameter coil has 20 turns and a resistance of 0.50 N. A magnetic field perpendicular to…

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Q: For the circuit shown below, ε = 50 V , R1 = 10 Ω, and L = 2.0 mH . Find the values of I1 and I2 (a)…

A: Assuming your circuit is

Q: Shrinking Loop. A circular loop of flexible iron wire has an initial circumference of 164 cm, but…

A: Write the expression for the circumference. Here, R is the radius. Write the expression for the…

Q: A sense coil is placed in the middle of a current spiral. The angle between the surface normal of…

A: Direction of the Magnetic field is parallel to the current spiral axis.

Q: Still in DC Steady State, ℰ=5 volts, R1=73 Ω, R2=87 Ω, and R3=61 Ω, and L=6 Henry.  Calculate I1.

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Q: The emf generated in the inner N-turn coil is = -Ndg/dt. Note that because t in the exponential…

A: Second last step of the question is to be solved.

Q: The current in an RL circuit builds up to one-third of its steady-state value in 5.54 s. Find the…

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Q: A four pole machine generates 250V when operated at 1500rpm. If the flux per pole is 1.085x10^6…

A: In this case, a four-pole machine generates some voltage while operated at a certain speed. The…

Q: What is the effect on the EMF of increasing the number of turns of wire from N = 1 to N = 400?

A: The answer to the given question is as follows.

Q: Consider a circuit with a power source that provides a sinusoidal (A/C) voltage. When the switch is…

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Q: (A) What is the current in the circuit the moment after the switch S is closed? (B) What is the…

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Q: Question 1 For the given circuit below, determine the current ic(f) for t>0 assuming the switch has…

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Q: If the current in a 140 mH coil changes steadily from 22.0 A to 10.0 A in 450 ms , what is the…

A: Given data, Inductance L=140 mH Current 22 A-10 A Time t=450 ms

Q: The equation for loop 12 using Kirchhoff's Voltage Law will yield the magnitude for R equal to i₁ =…

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Q: What is the direction of the induced emf in the conducting loop C

A: Given data- A circuit is given in figure which have a voltage source ε, connected with resistance R.…

Q: In an RLC circuit, L=0.1 H, R=0.6; C=0.4F; and E(t)=60 V. Find the charge at time t. Assume the…

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Q: The induced EMF is in such a direction as to oppose or tend to oppose the change that produces it.…

A: The given statement is, The induced EMF is in such a direction as to oppose or tend to oppose the…

Q: Three resistors, R, 2R, and 3R, where R = 18.8 2, are wired to an inductor, L = 0.255 H, an emf, ε =…

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Q: 3.00 k2 d E Es 70.0 V 60.0 V 80.0 V R2 4.00 ka 2.00 k2 R

A: Consider the circuit diagram.

Q: None

A: thank you

Q: For a classroom demonstration, a professor built an RL circuit similar to the one shown in the…

A: As per guidelines only 3 subparts are solved here.

Q: An inductor that has an inductance of 16.0 H and a resistance of 24.0 2 is connected across a 100 V…

A: inductance=16 Hresistance=24Ωvoltage=100 v

Q: The current in an RL circuit builds up to one-third of its steady-state value in 5.00 s. Find the…

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Q: A generator produces 18.0 V when turning at 910 rev/min. What emf does it produce when turning at…

A: Emf produced by the generator is 10.68V Explanation:Given data:-solution:-

Q: A series RL circuit with R = 28 Q has a constant voltage E 151 V applied at t = 0 by %3D %3D the…

A: Here, a series R L Circuit is provided.  It is also given that,  R =28 Ohm E =151 V is applied at…

Q: A copper bar 90 cm long is perpendicular to a field of 0.75 Wb/m2 and moves at right angles to the…

A: Given that:-Length of rod, l=90 cm=0.90 mSpeed, v=250 mm/sMagnetic field when perpendicular to each…

Q: A 7.50 nF capacitor is charged to 12.0 V, then disconnectedfrom the power supply and connected in…

A: Using the principle of capacitance Q =CVQ = charge of the capacitor C =capacitanceV= voltage given…

Q: Instructions 50 cm 10 cm 8.0 A R = 1.0 × 10-3 N A small circular loop of wire of radius 5 cm and…

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Q: The following picture shows a LONG conductor carrying current I. Nearby there is a conducting…

A: (a) The expression of the magnetic field (B) as a function of distance x is B→=μ0I2πx + (b) The…

Q: A 140 V emf is across a transformer's 190-turn primary coil.  How many turns should the secondary…

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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.