The radius of narrow toroid is 10- m and has 1000 turns of wire on it. How large current must flow in it, if magnetic induction inside it is 0.05T?
Q: a 0.8T bar magnet is pushed through a 50.5 turn coli with an area of 0.002m2 in 3.4sec. The
A: Given No of turns = 50.5 Magnetic field B = 0.8 T Area A = 0.002 m2 Time ∆t = 3.4 sec
Q: A coil consisting of 800 turns, very closely spaced, has an inductance of 4mh and a current of…
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Q: A very tong hollow cylindrical coil with across- Sectional area of 7ocm and the number oe turns Per…
A: Energy stored in a coil = (1/2) LI2 L = self inductance I = instantaneous current
Q: An aircraft has a wing span of 30 m Find the emf induced belimeen the cuing tips when it flies at…
A: The speed of the aircraft is given as v =100*1000/3600 = 27.7 m/s
Q: The copper rod 1.5m long is rotated in a magnetic field of induction 6x105wb/m². If it performs 1200…
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Q: The figure below is a graph of the magnetic flux through a certain coil of wire as a function of…
A: By Faraday's law emf induces if equal to negative of the time derivative of magnetic flux. And time…
Q: A prototype of an MRI consists of a set of 400 coils each having a radius of 0.30 m. To test its…
A: V=∆ϕ∆t=NBA∆t=NBπR2∆t=4001.2 T3.140.30 m23.6 s=37.7 V
Q: A stationary square coil of area 0.1 m2 is brought into the magnetic field 4.7 T with its plane…
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Q: Magnets carrying very large currentsare used to produce the uniform, large-magnitude magnetic…
A: Given:- Magnetic flux ϕB = μ0InAPlugn = NLϕB =μ0InA L L is…
Q: If a 0.8T bar magnet is pushed through a 50.5 turn coli with an area of 0.002m2 in 3.4sec. The…
A: Given that:- No of turns = 50.5 Magnetic field B = 0.8 T Area A = 0.002 m2 Time ∆t = 3.4 sec We…
Q: Is change in magnetic flux directly proportional to induced emf? How?
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Q: A coil carrying electric current is placed in uniform magnetic field with the angle 0. Then a.…
A: When a current carrying coil is placed in a uniform magnetic field, then magnetic moment is…
Q: Example: If a coil conductor is connected to a 3 kQ resistor, what would be the rated voltage and…
A: Example: The rated voltage(V) and the current(I). Given, Number of turnsN=3rate of change of…
Q: The coil in an electromagnet has an inductance of 1.7 mH and carries a constant direct current of…
A: Given that,Inductance, L=1.7 mH=1.7×10-3HDirect current, I=5.6 AInduced emf, ε=7.3 V
Q: The distance between the wingtips of an aircraft is 40m. Find the e.m.f. induced between the…
A: The induced emf is given by ε=Blv it is given that B=4×10-5 wb/m2l=40 mv=1000 km/hr=277.78 m/s
Q: A very long, hollow cylindrical coil with a cross-sectional area of 70 cm2 and the number of turns…
A: Calculate the magnetic field produced by the cylindrical coil. B=μ0ni=4π×10-7 H/m×4500/m×5 A=0.0282…
Q: The strength of poles of a bar magnet 20 cm long is 50 A-m. Find the magnetic induction at a point…
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Q: An aircraft has a cuing span of 30 m Find the emf induced belimeen the cuing tips when it flies at…
A: We need to compute-Emf induced between wings tips (e)=?Given that-l=30 mv=1000…
Q: In electromagnetic induction, how does no. of coils affect the current produced?
A: The phenomenon of Electromagnetic induction is discovered by Michael Faraday in 1831. The Law of…
Q: A 48-cm-long solenoid, 1.5 cm in diameter, is to produce a 0.06-T magnetic field at its center. If…
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Q: What is the magnetic induction at the Yentre of a T.G. coil of 50 turns of average radius 10 cm,…
A: We have given Number of turns N = 50 Radius r = 10 cm r = 0.1 m Current i = 0.35 A…
Q: When a current passes through a conductor in upward direction, then O a. A magnetic field is…
A: When a current passes through a conductor in upward direction, then O a. A magnetic field is…
Q: Two circular cross sectional poles of a magnet are 60 cm in diameter and the separation and the…
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Q: The circular loop with a radius of 12cm seen in the figure is in a uniform magnetic field of 0.15T…
A: The circular loop initially has a radius of 12 cm, thus a diameter of 24 cm and is kept in a 0.15 T…
Q: A circular coil has a radius of 15.0 cm and carries a current of 2.90 A. If the perpendicular to the…
A: 1) Write the expression for the cross-sectional area.
Q: Considerable scientific work is currently under way todetermine whether weak oscillating magnetic…
A: Calculate the maximum emf as follows,
Q: @) An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…
A: From Faradays law of electromagnetic induction, when magnetic flux through a conductor changes with…
Q: Calculate the magnetic induction, B, of a wire that carries a current of 100 amps, at a distance of…
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Q: A wire of resistance 0.50 ohms forms a loop of area 7.85*10^5 m^2, andthen is placed in a uniform…
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Q: When a current of 60 mA is passed through the coil of a tangent galvanometer a deflection of 45°is…
A: We have to find, BH Given that, I=60 mA=60×10-3 A=6×10-2 Aθ=45°n=50 turns,r=8.8 cm=8.8×10-2…
Q: A long solenoid of 80 turns and length 16 cm is known to have a field of 4x10-3 T. What is the…
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Q: The topic of this is physics about electromagnetism (physics) How many turns should a coil with a…
A: Concept used: Faraday's law of electromagnetic induction is used.
Q: A cycle wheel has 10 spokes each of length 0.5 m long is rotated at a speed of 18 km/hr in a plane…
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Q: A 500-turn square coil of wire is hinged to the top of a table, as shown in the (Figure 1). Each…
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Q: A 0.220 m radius, 506 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having…
A: SOlution: given that r = 0.22 m N = 506 t = 4.17 ms emf = 10000 V
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