60.0° х х Figure P20.3

Q: A uniform magnetic field passes through a surface of area A as shown in the figure. If the area…

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Q: In Figure P19.3, assume in each case the velocity vector shownis replaced with a wire carrying a…

A: Use the right hand-thumb rule to find the direction of the magnetic field.Right hand rule: Consider…

Q: A uniform magnetic field of 6.9 x10-3 T passes through a single loop rectangular coil of dimensions…

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Q: •19 (a) Find the frequency of revolution of an electron with an energy of 100 eV in a uniform…

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Q: 29.23     A circular loop of wire with radius r = 0.0250 m and resistance R = 0.390 Ohms is in a…

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Q: There are 2 infinite long parallel conductors in the air at r = 6 cm from each other are traversed…

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Q: Figure P20.3 shows three edge views of a square loop with sides of length ℓ = 0.250 m in a magnetic…

A: Length (L) = 0.250m B = 2.00 T Area of the square (A) = L * L A = (0.250) * (0.250) A = 0.0625 m2

Q: 1. A rectangular loop of wire of length L = 7.0 cm and width s = 5.0 cm lies near a very long wire…

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Q: A conducting rectangular loop ofmass M, resistance R , and dimensions w by l falls from rest into a…

A: (a)Magnetic force exerted on the lower end of the loop:

Q: The magnetic field in a solenoid is B = (H0NI) / d. A circular wire of radius 13 cm is concentric…

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Q: A small circular coil of 20 loops of wire having a radius of 1 cm is at rest in the x-y plane (so…

A: 1) magnetic flux = NBACos0°  = 20×0.5×π×0.012  = 3.14×10-3 T m2  Option b correct

Q: A circular loop of wire of resistance R = 0.500 Ω and radiusr = 8.00 cm is in a uniform magnetic…

A: The clockwise induced current in the loop produces a flux which is directed into the page through…

Q: A square plate ( with a side of 10 cm) parallel to the xz-plane and intercept with y-axis at y= 11.4…

A: Given : Side of plate=a=10 cm=0.1 m B(y)=3i+6y2+5k T y=11.4 m

Q: A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic…

A: Given Data: The current in the operator is, I=120 mA The known uniform magnetic field is, B1=0.0900…

Q: A 2.0-m length of conducting wire is formed into a square and placed in the horizontal xy- plane. A…

A: Given data: The length of the conducting wire is, L= 2 m A magnetic field is oriented at an angle…

Q: In the figure, a wire loop of dimensions L= 42.6 cm and W = 26.7 cm lies in a magnetic field. What…

A: Dear student,  "Since you have posted a question with multiple sub-parts, we will solve first three…

Q: A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic…

A: The given data is, 1. I=120 mA 2. Known uniform magnetic field, B=0.0800 T 3. Hall Voltage, VH=0.720…

Q: A uniform magnetic field of 6.1 x10-3 T passes through a single loop rectangular coil of dimensions…

A: Given: Electric Flux = Flux Wb Magnetic Field (B) = 6.1 x 10-3 T Area of the loop = 6.3 x 4.5 =…

Q: A circular loop of radius 12.5 cm is placed in a uniform magnetic field. (a) If the field is…

A: Given data : Radius of circular loop (r) = 12.5 cm = 0.125 m Magnetic flux (ΦB) = 7.80 × 10-3 T. m2…

Q: A rectangular loop (2cm X 4 cm) is placed in the X-Y plane and is surrounded by a magnetic field…

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Q: Q2: A charged 12mFcapacitor is discharged through a 55kn resistor, when will the capacitor and the…

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Q: A uniform magnetic field of 6.9 x103 T passes through a single loop rectangular coil of dimensions…

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Q: A thin, circular coil with 47 turns that has a radius of 20.7 cm carries a current of 2.65 A. What…

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Q: A circular loop of wire of resistance R = 0.500 V and radius r = 8.00 cm is in a uniform magnetic…

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Q: The right half of the square loop of wire shown is in a 0.85 T magnetic field directed into the…

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Q: Consider two identical charges, of charge 3.65 mC, moving at the same speed of v = 34 × 105 m/s. The…

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Q: The figure below shows a cross section of a long cylindrical conductor of radius a = 4.02 cm…

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Q: A square loop, 5 cm on a side, is placed within a 3.7 T magnetic field such that the field makes an…

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Q: A Hall-effect probe operates with a 120-mA current. When the probe is placed in a uniform magnetic…

A: Let I be the current, B1 is the magnetic field, VH1 is the hall voltage. The expression of the Hall…

Q: circular loop of radius 12.4 cm is placed in a uniform magnetic field. (a) If the field is directed…

A: Given: Radius (r) = 12.4 cm = 0.124 m  Magnetic flux (Φ) = 8.50 ✕ 10 -3   T · m2

Q: Q28.19 (a) How large a current would a very long, straight wire have to carry so that the magnetic…

A: Given: The distance from the wire is 2.00 cm. The magnetic field is 1.00 G.

Q: A point charge Q moves on the x-axis in the positive direction with a speed of 280 m/s. A point P is…

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Q: A 10-cm-radius, conducting, circular loop with 50 turns carries a current 0.80 A. What is the…

A: given data   radius R =10cm= 0.1m no of turns N= 50 current I = 0.8A we know that  magnetic field at…

Q: A 35.6-meter-long spacecraft flies past a neutron star, and passes through the neutron star s…

A: Given data The spacecraft length is: L = 35.6 m The magnetic field strength is B = 7.95 x 104 T The…

Q: The magnetic field of a cylindrical magnet that has a pole-face diameter of 3.3 cm can be varied…

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Q: (a) i) What is the maximum torque on a 150 turn square loop of wire 18.0 cm on a side that carries a…

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Q: Consider the arrangement shown in Figure P31.20. Assume that R = 4.00 n, 1.20 m, and a uniform 2.90…

A: OHM'S LAW is given by following equation V=IR There is emf due to magnetic field which is given by…

Q: The metal equilateral triangle shows, 20 cm on each side, is halfway into a 0.10 T magnetic field.a.…

A: Given data: Length of the side of triangle, L=20 cm=0.20 m Magnetic field, B=0.10 T

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.