makaylagilbert4477 makaylagilbert4477

25-07-2022
Physics

contestada

Consider two copper wires. one has twice the length and twice the cross-sectional area of the other. how do the resistances of these two wires compare?

Respuesta :

25-07-2022

Answer:

R = ρ L / A where R is the resistance and ρ the resistivity:

R2 / R1 = (L2 / A2) / (L1 / A1) = L2 * A1 / (L1 * A2)

R2 / R1 = (2 L * A) / (L * 2 A) = 1

Their resistances should be the same.

Answer Link

Otras preguntas

What was the result of the Chinese Civil War after World War l1?

Find the sum of 14+20+26+...+1244

Which word shows the best meaning of the underlined word in this paragraph? Sydney likes to knit hats with matching scarfs for her friends and family and give

Figure missing numbers And a rule

Why did World War I increase the popularity of musicals? In musicals, the United States always won the war. The songs in musicals were patriotic. Money from

What is the definition of net pay

Which question best reflects the biggest concern that Tucker must address for Group c?

What is the floor of an aquatic biome called? benthic zone photic zone marine zone aphotic zone

Select the correct answer. Rectangle ABCD is dilated by a scale factor of 2 with the origin as the center of dilation, resulting in the image A′B′C′D′. If the s

Solve the question below. A. 3 B. 7.5 C. 4.5 D. 6