Question

Calculate the resistance of copper wire 20 m long and diameter of 0.05cm . If specific resistance of copper is 1.678×10^-6

Answer 1

Answer:

oopssss

Explanation:

Answer 2

The resistance value will be 1.08K.

Given:
Length = 20M = 20 M

Dia = 0.5 mm >= $0.5/1000 = 0.0005 m$

Area = Pi*d^2/4 = $7.85* 10^ ^-7 Sq Mtr/4$
To find: Resistance
Solution:

Ohm’s law states the connection 'tween energetic current and potential dissimilarity. The current that flows through most leaders is straightforwardly equivalent to the service used to it.

Georg Simon Ohm, a German researcher was the first to confirm Ohm’s standard tentatively.Ohms society replies that the current running through the leader is straightforwardly equivalent to the potential distinctness across allure limits because the hotness and additional material environments are nonstop.

Formula of Ohm’s LawOhms society recipe is connected asV=IRWhereVoltage is V and is calculated in Volts,The current gushing through the leader is I and it presented in amperes,the opposition is R and is calculated in ohmsOhm’s standard recipe (potential distinctness rule) is fashioned use of to reckon the Resistance, Current, and Voltage in some likely revolution if one two together quantities are likely.

Resistivity = 1.7 x10^-6 ohm meter

R = Resistivity x length / area

$= 1.7*10^-6 * 2 * 10^3 /7.85 * 10 ^-7/4\\= 1.7 * 2/7.85 * 10^4 = 0.433 * 10 ^ 4 \\= 4330 Ohms = 4.33 K Ohms/4 \\= 1.08K$

The resistance value will be 1.08K.

Learn more about Resistance on:

brainly.in/question/29795

brainly.in/question/19674158

#SPJ3