015 10.0 points If 6 x 10" electrons pass through a 30 ( resis- tor in 5 min, what is the potential difference across the resistor? The fundamental charge is 1.602 x 10 C. Answer in units of V. 016 10.0 points Consider two cylindrical conductors made of the same ohmic material.If p2 = p1 , re = 2mi, 42 = 36 , and V, = R2 of the resistances. Vi , find the ratio R1 R2 1. R1 R2 2. R1 13 3. R1 R2 4. R1 R2 5. 4 R1 R2 6. R1 R2 R2 8. R1 9. R1 R2 10. R 017 10.0 points Birds resting on high-voltage power lines are a common sight. The copper wire on which a bird stands is 2.21 cm in diameter and carries a current of 9 A. If the bird's feet are 5.7 cm apart, what is the potential difference across its body? Copper's resistivity is 1.68 x 10 *0m. Answer in units of AV. 018 10.0 points A 1.17 V potential difference is maintained across a 0.7 m length of tungsten wire that has a cross-sectional area of 0.42 mm-.What is the current in the wire? The resis- tivity of the tungsten is 5.6 x 10 * 0 . m. Answer in units of A. 019 10.0 points A wire with a circular cross section and a re- sistance # is lengthened to 3.64 times its orig- inal length by pulling it through a small hole. The total volume of the wire is unchanged. Find the resistance of the wire after it is stretched. Answer in units of R. 020 10.0 points A 133 V electric iron draws 5.93 A of current. How much heat is developed per hour? Answer in units of J. 021 10.0 points A 534 W bulb and a 267 W bulb are both designed to operate at standard household voltage of 120 V. Determine which bulb has the lower fila- ment resistance and then calculate the value of its resistance. Answer in units of !. 022 (part 1 of 2) 10.0 points A high voltage transmission line with a re- sistance of 0.28 4/km carries a current of 1499 A. The line is at a potential of 1600 kV at the power station and carries the current to a city located 213 km from the power station. What is the power loss due to resistance in the line? Answer in units of MW. 023 (part 2 of 2) 10.0 points What fraction of the transmitted power does this loss represent? Answer in units of %