13.1 Check Your Understanding A closely wound coil has a radius of 4.0 cm, 50 turns, and a total resistance of 402. At what rate must a magnetic field perpendicular to the face of the coil change in order to produce Joule heating in the coil at a rate of 2.0 mW?

Q: An emf of 17.0 mV is induced in a 461-turn coil when the current is changing at the rate of 10.0…

A: Given, emf induced in the coil, ε = 17.0 mV Number of turns, N = 461  rate of change of current,…

Q: A 0.120 m radius, 486 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having…

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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 circular coil of 100 turns and diameter 24 cm is rotated continuously in a uniform magnetic field…

A: We need to compute- Maximum emf induced in the coil (e0)=? Instantaneous induced emf (e)=? The data…

Q: A circular coil having 60 turns has a radius of 75 mm. What current must exist in the coil to…

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Q: = A coil with a 10.800 cm and b = 13.000 cm is in the same plane with a long straight wire. The…

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Q: A long piece of wire of mass 0.086kg and total length of 4.43m is used to make a square coil with 63…

A: The coil is in equilibrium when the magnetic torque (τmagnetic) equals the gravitational torque…

Q: The particle m in Figure is moving in a vertical circle of radius R inside a track. There is no…

A: Given information: The mass of the particle, m The velocity of the particle at the bottom of the…

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: What is the peak emf (in kV) generated by a 0.260 m radius, 520-turn coil that is rotated one-fourth…

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Q: A 150-turn circular coil has a diameter of 5.25 cm and a resistance of 1.30 Ω. A magnetic field…

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Q: 3. From the figure, a circular coil of radius (r) 10.0 cm, 10 turns, is wound at the center point of…

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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: A coil has a self-inductance of 50 [?H] and a resistance of 3.5 [Ω]. It is connected to a 9.0 [V]…

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Q: a current of 3.3 A creates a flux of 160micro Wb in a coil of 317 turns. calculate the induced emf…

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Q: How much magnetic field strength would be needed to create an induced emf of 9.27 V in a 0.865 m…

A: Induced emf to create is, e=9.27 V Length of the wire, L=0.865 m Velocity of the wire, v=82.8 m/s…

Q: 1.What is the induced emf if the magnetic field through a 10 turn coil increases at a rate of .2…

A: The given data are: N=10Bt=0.2 T/sr=0.5 mV=2 V Here, N, B, r, and V represent the turns, magnetic…

Q: A 95-turn square wire coil of area 0.040 m² rotates about a vertical axis at 1,510 rev/min, as…

A: Solution:-Number of turns (N)=95Area of coil (A)=0.04 m2Angular speed (N)=1510 rev/minHorizontal…

Q: A 780 loop circular armature coil with a diameter of 8.4 cm rotates at 145 rev/s in a uniform…

A: The number of loops in the coil is given as The diameter of the coil is, The angular speed fo the…

Q: 2. A 23.0 cm diameter coil consists of 23 turns of cylindrical copper wire 2.60 mm in diameter. A…

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Q: the induced Voltage.

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Q: Ve 12 FIGURE 1

A: Motional emf = Blv

Q: magnetic flux through each turn of the coil

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Q: An emf of 26.5 mV is induced in a 504 turn coil when the current is changing at a rate of 10.5 A/s.…

A: Given data *The given induced emf is E = 26.5 mV = 26.5 × 10-3 V *The number of turns in a coil is N…

Q: An emf is induced by rotating a 1,228-turn, 10.0 cm diameter coil in the Earth’s 5.00 ×10-5 T…

A: Number of turns, N = 1228diameter, d = 10 cm = 0.10 mTherefore radius R = Magnetic field, B = 5 x…

Q: A 105-turn square wire coil of area 0.040 m2 rotates about a vertical axis at 1,800 rev/min, as…

A: Emf induced in the coil ε=dϕdt=ddtNBAcosθ=NBAωsinθ            ω=dθdtεmax=NBAω            sinθmax=1

Q: What is the peak emf (in kV) generated by a 0.280 m radius, 400-turn coil that is rotated one-fourth…

A: The value of radius and number of turns of the coil and time and magnetic field. Then We have to…

Q: If 53.5 cm of copper wire (diameter = 0.828 mm, resistivity = 1.69 × 10-80-m) is formed into a…

A: Step 1:Given:Length of the copper wire, L=53.5 cmThe cross-sectional diameter of the wire, d=0.828…

Q: Design a current loop that, when rotated in a uniform magnetic field of strength 0.52 T, will…

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Q: A 100-turn square wire coil of area 0.040 m2 rotates about a vertical axis at 1,450 rev/min, as…

A: Coil of area (A) = 0.040 m2 Number of turns (N) = 110  Angular frequency (ω) = 1450 rev/min = 1450…

Q: Problem 22.07. In in a wind turbine, a powerful 10.0 T permanent magnet supplies a field for a coil…

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Q: A square loop 24.0 cm on a side has a resistance of 6.10 Ω It is initially in a 0.665-T magnetic…

A: Magnetic flux is the field lines passing through particular area when that area loop is kept…

Q: What is the voltage induced in a generator with 938 turns, an area of 140 mm2 turning at a rate of…

A: Write a value of this question. N=938A=140×10-6m2N=37rpmB=0.0519 T

Q: A car alternator produces about 14 V peak output to charge the car's 12-V battery.  If the…

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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

Q: A 11.7 cm long rod moves at 3.99 (m/sec). What is the strength of magnetic field if a 94.8 V emf is…

A: Given that,The length of rod : (l) = 11.7 (cm)The speed of rod (v) = 3.99 (m/sec)The induced emf (E)…

Q: Through a coil with length of 20.0 cm and diameter of 6.0 cm and 400 turns electric current of 15.0…

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Q: An emf of 28.5 mV is induced in a 501 turn coil when the current is changing at a rate of 10.5 A/s.…

A: Given Data: Induced emf ε=28.5 mV Number of turns of the coil N=501 Rate of change of current…