) ( l points) A bird stands on a de electric line carrying 1700 A. The line has

Question

) ( l points) A bird stands on a de electric line carrying 1700 A. The line has 1.3 x10 birds feet are 5.0 cm apart. What is the potential difference between the birds feet? resistance per meter and the 7) (12 points). A circular loop of wire has a diameter of 28.0 crn and contains 25 loops. The curent in each loop is 3 S A and the coil is placed in parallel to a 1.5 T magnetic field. Determine the maximum torque exerted on the coil by the magnetic field. eneigy ic field position 8) (16 points). A G-3.5 Fand a C-45 F capacitors are connected in series and its combination is connected in parallel with a C-2.5 pF capacitor. What is the net capacitance? Co W

Explanation / Answer

here,

6)

resistance , R' = 1.3 * 10^-5 ohm per m

for l = 0.05 m

the resistance between the feet of bird , R = R' * l = 6.5 * 10^-7 ohm

current , I = 1700 A

the potential difference between the bird's feet , V = I * R

V= 6.5 * 10^-7 * 1700 V

V = 1.1 * 10^-3 V

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