Which of the following wires would have the GREATESTresistance? Please explain a. an aluminum wire 10 cm in length and 3 cm in diameter b. an aluminum wire 5 cm in length and 3 cm in diameter c. an aluminum wire 10 cm in length and 5 cm in diameter d. an aluminum wire 5 cm in length and 5 cm in diameter Which of the following wires would have the GREATESTresistance? Please explain a. an aluminum wire 10 cm in length and 3 cm in diameter b. an aluminum wire 5 cm in length and 3 cm in diameter c. an aluminum wire 10 cm in length and 5 cm in diameter d. an aluminum wire 5 cm in length and 5 cm in diameter a. an aluminum wire 10 cm in length and 3 cm in diameter b. an aluminum wire 5 cm in length and 3 cm in diameter c. an aluminum wire 10 cm in length and 5 cm in diameter d. an aluminum wire 5 cm in length and 5 cm in diameter
Explanation / Answer
Theresistance is R = L/A =L / (d/2)2 For given wire R L/d2 Hence correct answer is a ( analuminum wire 10 cm in length and 3 cm in diameter) Hence correct answer is a ( analuminum wire 10 cm in length and 3 cm in diameter)