(II) A power line carrying a sinusoidally varying current with frequency f = 60 Hz and peak value I 0 = 55 kA runs at a height of 7.0 m across a farmer’s land (Fig. 29–41). The farmer constructs a vertically oriented 2.0-m-high 10-turn rectangular wire coil below the power line. The farmer hopes to use the induced voltage in this coil to power 120-Volt electrical equipment, which requires a sinusoidally varying voltage with frequency f = 60 Hz and peak value V 0 = 170 V. What should the length ℓ of the coil be? Would this be unethical? FIGURE 29–41 Problem 16.
(II) A power line carrying a sinusoidally varying current with frequency f = 60 Hz and peak value I 0 = 55 kA runs at a height of 7.0 m across a farmer’s land (Fig. 29–41). The farmer constructs a vertically oriented 2.0-m-high 10-turn rectangular wire coil below the power line. The farmer hopes to use the induced voltage in this coil to power 120-Volt electrical equipment, which requires a sinusoidally varying voltage with frequency f = 60 Hz and peak value V 0 = 170 V. What should the length ℓ of the coil be? Would this be unethical? FIGURE 29–41 Problem 16.
(II) A power line carrying a sinusoidally varying current with frequency f = 60 Hz and peak value I0 = 55 kA runs at a height of 7.0 m across a farmer’s land (Fig. 29–41). The farmer constructs a vertically oriented 2.0-m-high 10-turn rectangular wire coil below the power line. The farmer hopes to use the induced voltage in this coil to power 120-Volt electrical equipment, which requires a sinusoidally varying voltage with frequency f = 60 Hz and peak value V0 = 170 V. What should the length ℓ of the coil be? Would this be unethical?
Point with magnetic induction of 7.3uT is at distantance 88cm from the centre of infinitely long conductor. What is the current carrying by conductor.
A circular coil of radius 4.00 cm contains 120 loops and its plane is positioned perpendicular to a uniform 0.74-T magnetic field, as shown. It is quickly and uniformly pulled from the field to a region where the B-field drops abruptly to zero. It takes 0.12 s for the whole coil to reach the field-free region. How much power is dissipated in the coil if its resistance is 170 Ω?
A flat coil with radius 8.0 mm has 50 loops of wire. It is placed in a magnetic field B = 0.30 T in such away that the maximum flux goes through it. Later, it is rotated in 0.020 s to a position such that noflux goes through it. Find the average emf induced between the terminals of the coil.
Chapter 29 Solutions
Physics For Scientists & Engineers With Modern Physics, Vol. 3 (chs 36-44) (4th Edition)
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