Rotation axis

Q: A square coil of wire of side 3.35 cm is placed in a uniform magnetic field of magnitude 2.25 T, The…

A: a. the magnitude of flux passing through the loop is  ϕB=NBA

Q: A coil has an area of 100 cm² with 300 turns connected across a 5.00 Q resistor to form a closed…

A: Let B1 and B2 denote the initial and final magnetic field, A denotes the area, N denotes the number…

Q: A coil has an area of 100 cm2 with 220 turns connected across a 5.00 Q resistor to form a closed…

A: Given, Area of coil A = 100 cm2 = 0.01 m2 Number of turns N = 220 Resistor R = 5 Ω Magnetic field B…

Q: A coil of area A = 0.25 m2 is rotating with angular speed ω = 380 rad/s with the axis of rotation…

A: Part (a) Maximum emf induced in the loop is ε0=NABω

Q: A rectangular coil of N turns, each of width a and length b; where N = 80, a= 17 cm, and b = 25 cm;…

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Q: A square coil of wire of side 2.25 cm is placed in a uniform magnetic field of magnitude 2.00 T…

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Q: A flat, square coil of 20 turns that has sides of length 15.0 cm is rotating in a magnetic field of…

A: Given Number of turn is N=20 One side of square is 15.0cm=0.15m Area of square coil A=(0.15)2…

Q: A closely wound rectangular coil of 100 turns has a dimension of 12.0cm x 25.0cm. In time t=0.0800 s…

A: Given, Number of turns of rectngular coil, N = 100dimension, 12.0 cm ×25.0 cmtime, t = 0.080 sit…

Q: A square coil of wire of side 4.00 cm is placed in a uniform magnetic field of magnitude 2.00 T…

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Q: A square coil of wire of side 2.25 cm is placed in a uniform magnetic field of magnitude 2.00 T…

A: Here length of square = 2.25 cmUniform magnetic field = 2TTurns of the coil (N) = 27.5Resistance (R)…

Q: A conducting bar of mass m = 0.2 kg, length / = 0.5 m, and resistance R slides in a horizontal plane…

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Q: A square coil of wire of side 2.90 cm is placed in a uniform magnetic field of magnitude 2.00 T…

A: a  Area of square coil A= l2                                          A= 2.902= 8.41 cm2=…

Q: A coil has an area of 100 cm2 with 226 turns connected across a 5.00 Q resistor to form a closed…

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Q: In the diagram below, a rectangular 40 loop coil of width w=10 cm and length l= 14 cm begins in a…

A: Given number of loops=40 Width(w)=10 cm Length (l)=14 cm Magnetic field=1.3 T Time period=3 s…

Q: A conducting rod is pulled horizontally with constant force F= 3.90 N along a set of rails separated…

A: Force (F) = 3.90 N separation between rails (d) = 0.44 m B = 0.5 T v = 4.80 m/s

Q: A coil has an area of 100 cm2 with 158 turns connected across a 5.00 Q resistor to form a closed…

A: The average current in the coil during this time will be = 17.6 A.

Q: A coil has an area of 100 cm2 with 198 turns connected across a 5.00 Q resistor to form a closed…

A: The expression for the induced emf is written as, Here, N, Δφ and Δt represent the number of turns…

Q: A square coil of wire of side 2.50 cm is placed in a uniform magnetic field of magnitude 1.75 T…

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Q: A square coil of wire of side 3.95 cm is placed in a uniform magnetic field of magnitude 2.00 T…

A: Given data: Number of turns in the coil, N=32.0 turns Magnetic field, B =2.00 T Side of the square,…

Q: Consider a conducting rod of length 29 cm moving along a pair of rails, and a magnetic field…

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Q: A square coil of wire of side 2.35 cm is placed in a uniform magnetic fleld of magnitude 1.50 T…

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Q: A 50 cm long metal rod moves along the two rails in a plane of the circuit shown and is placed…

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Q: A wire loop of radius 12 cm and resistance 8.5 Q is located in a uniform magnetic field B that…

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Q: A square coil of wire of side 2.55 cm is placed in a uniform magnetic field of magnitude 1.75 T…

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Q: A square coil of wire of side 2.35 cm is placed in a uniform magnetic field of magnitude 2.00 T…

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Q: The induced emf in a single loop of wire has a magnitude of 1.35 V when the magnetic flux ischanged…

A: induced e m f, e = 1.35 V magnetic flux changed from 0.99 T m2 to 0.26 T m2

Q: Here you see a single loop of stiff wire, 10.0 cm on a side, immersed in a magnetic field of 0.225…

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Q: A circular coil of wire consisting of 200 turns, each with a radius 50 cm, is positioned…

A: Given data: The number of turns is N = 200 The radius is r = 0.5 m The change in magnetic field is…

Q: A square coil of wire of side 3.05 cm is placed in a uniform magnetic field of magnitude 1.75 T…

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Q: A physician is using a device, with a thin circular coil of current-carrying wire of radius 1.7 mm,…

A: Given Data : The radius of the circular coil is given as r=1.7mm×1m1000mm=1.7×10-3m The final…

Q: As shown, a single loop (resistance R, width W, and length L) moves to the right at a constant speed…

A: Given, The velocity of the loop v=5 m/s magnetic field B=2.9 T Resistance R=3 ohm Length L=45 cm…

Q: A square coil of wire of side 2.85 cm is placed in a uniform magnetic field of magnitude 2.25 T…

A: (a) Write the formula for the area of a rectangular coil.

Q: A square coil of wire of side 3.90 cm is placed in a uniform magnetic field of magnitude 2.25 T…

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Q: X X X a b V B

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Q: A square coil of wire of side 3.20 cm is placed in a uniform magnetic field of magnitude 2.25 T…

A: The area of a square coil is, A=3.20 cm3.20 cm=0.032 m0.032 m=1.024×10-3 m2 The magnetic field is,…

Q: A square coil of wire of side 3.75 cm is placed in a uniform magnetic field of magnitude 1.75 T…

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Q: The plane of a conductive loop with an area of 0.020 m^2 is perpendicular to a uniform magnetic…

A: Given, area of the conductive loop, A = 0.020 m2 Magnetic field is the perpendicular to the surface…

Q: As shown, a circular conducting loop (with 4 turns and of resistance R= 8.8 0) is placed in a…

A: Given: Number of turns in the coil, N=4 Resistance of the material of the loop, Magnetic field,…

Q: A coil has an area of 100 cm2 with 297 turns connected across a 5.00 Q resistor to form a closed…

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Q: A 40-turn coil has a diameter of 13 cm. The coil is placed in a spatially uniform magnetic field of…

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Q: A rectangular coil of N turns, each of width a and length b; where N = 70, a= 19 cm, and b = 33 cm;…

A: Given information: The symbols have the same meaning as cited in the question.

Q: A wire loop that encloses an area of 15 cm? is perpendicular to a magnetic field of 0.10 T. If the…

A: given data area = 15cm2 magnetic field = 0.10 T field is drops to 0.04 T in 0.2 s average emf…

Q: A solenoid ring with N = 3 loops is immersed in a uniform time-varying magnetic field (shown in the…

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Q: A square coil of wire of side 3.40 cm is placed in a uniform magnetic field of magnitude 2.00 T…

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Q: A coil with radius 4.00 cm contains 500 turns, and is placed in a uniform magnetic field that varies…

A: According to the faraday's law of electro magnetic induction  The rate of change of magnetic flux is…

Q: A square coil of wire of side 3.55 cm is placed in a uniform magnetic field of magnitude 1.50 T…

A: (a)In the initial orientation of the coil, the magnetic flux passing through the loop is,After loop…

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.