The magnetic flux through a coil of wire containing two loops changes at a constant rate from -68 Wb to +29 Wb in 0.64 s Part A What is the magnitude of the emf induced in the coil? Express your answer to two significant figures and include the appropriate units. ? |E| = Value Units Submit Request Answer Provide Feedback

Q: Two coils close to each other have a mutual inductance of 32 mH. If the current in one coil decays…

A: Mutual inductance M = 32 mH = 0.032 H The current decays in one coils as   Where Io = 5.0 A α = 2.0…

Q: A single loop of wire with an area of 9.05x10-2 m² is in a uniform magnetic field that has an…

A: Given data:area of the loop is magnetic field is decreasing at a constant rate of   [ negative sign…

Q: A long, current-carrying solenoid with an air core has 2200 turns per meter of length and a radius…

A: When two coils are put close to one another, the magnetic fields in one of the coils have a tendency…

Q: The current in a coil changes steadily from 1.3 A to 2.5 A in the opposite direction, in 0.12 s. The…

A:

Q: 200-mA current flows in a small solenoid which stores 20 μJ of magnetic energy. The inductance of…

A:

Q: (a) Determine the speed of transverse waves on a string under a tension of 95.0 N if the string has…

A: a. the speed of the wave is v=FTμ=FTm/l=FTlm=95 N2 m6.5×10-3 kg=170.97 m/s

Q: At the instant a current of 0.80 A is flowing through a coil of wire, the energy stored in its…

A:

Q: Astronauts on a space station decide to use Earth's magnetic field to generate electric current.…

A:

Q: In the figure, a 150-turn coil of radius 1.9 cm and resistance 5.90 is coaxial with a solenoid of…

A:

Q: Figure 1) shows a 100-turn coil of wire of radius 14 cm in a 0.15 T magnetic field. The coil is…

A: It is given that, N = 100 A=πr2 =3.14(14×10-2 m)2  B =0.15 T  t =0.30 s

Q: A 15.5-cm-diameter loop of wire is initially oriented perpendicular to a 1.9-T magnetic field. The…

A: Diameter,  Magnitude of the magnetic field,  Time,

Q: In each of two coils the rate of change of the magnetic flux in a single loop is the same. The emf…

A:

Q: en the current in one coil changes at a rate of 7.0 A/s, an emf of -9.5 x 10-3 v is induced in a…

A:

Q: The inductance of a closely packed coil of 500 turns is 11 mH. Calculate the magnetic flux through…

A: Magnetic flux.

Q: A long solenoid of length 8.80 x 102 m and cross-sectional area 5.0 x 10-5 m² contains 6500 turns…

A:

Q: A 10.2 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic…

A: Diameter of wire Initial magnetic field Time interval (T) = 0.17 s.Final magnetic field The upward…

Q: An L = 53.0 cm wire is moving to the right at a speed of v = 7.50 m/s across two parallel wire rails…

A: Length (L) = 53 cm = 0.53 m speed (v) = 7.50 m/s Magnetic field strength (B) = 0.75 T

Q: Two blocks are sliding on a horizontal frictionless surface with velocities shown in the sketch.…

A:

Q: The circuit shown in the figure contains a resistor and a solenoid. A battery is connected by…

A:

Q: A. B. C. D. The current I, in amperes, flowing through an alternating circuit, at a time of t…

A: Given:- Current through the alternating circuit is I=30 sin(bt) Period of the function is T=125 s

Q: In the figure, a 150-turn coil of radius 2.8 cm and resistance 4.2 Q is coaxial with a solenoid of…

A:

Q: A wire loop of radius 0.33 m lies so that an external magnetic field of magnitude 0.35 T is…

A: Radius of loop (r) = 0.33 m Initial magnetic field (B) = 0.35 T Final magnetic field (B') = -0.16 T…

Q: The accompanying figure shows a conducting ring at various positions as it moves through a magnetic…

A: When a conducting loop goes through some magnetic field, the emf induced in the loop is proportional…

Q: steadily from 1.3A to 2.5A in the opposite direction,in 0.12 s. The average emf induced in the coil…

A:

Q: A0.850-m-long metal bar is pulled to the right at a steady 6.0 m/s perpendicular to a uniform,…

A:

Q: A long solenoid of length 9.40 × 10-2 m and cross-sectional area 5.0 × 10-5 m² contains 6500 turns…

A: The EMF induced in the coil when the changing magnetic field passes through it. Step 1: List down…

Q: You want to investigate the voltage, V, induced in a coil due to motion of the magnet. A setup is…

A:

Q: (T m²) +6 +4 +2 0 246 -2 -4 -6 1 2 3 4 5 6 7 The magnetic flux through a loop changes over time, as…

A:

Q: An inductor used in a dc power supply has an inductance of 12.5 H and a resistance of 180.0 2. It…

A: Given data, Inductance L = 12.5 H. Resistance R=180 Ω. Current flowing i=0.650 A.

Q: = For the circuit shown below, € = 18.7V, R₁ = 44.2 Ohms, R₂ 20.6Ohms, and L= 40.4 H. S₁ remains…

A:

Q: The armature of a small generator consists of a flat, square coil with 190 turns and sides with a…

A: The length of the square loop is 1.9 cm. The strength of the magnetic field is 7.95x10-2 T. The…

Q: a. Determine the magnitude of the emf in the square loop (square- wire) at t = 3 seconds. b.…

A:

Q: In the figure, a 150-turn coil of radius 3.6 cm and resistance 7.5 0 is coaxial with a solenoid of…

A:

Q: You want to investigate the voltage, V, induced in a coil due to motion of the magnet. A setup is…

A: Given :

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.