Calculate the are-length of the curve given by r(y)= for the piece of the curve

Question

Calculate the are-length of the curve given by r(y)= for the piece of the curve between the point (1,0,1) and the point corresponding to t=x. Suppose that ={x,y}, 0 lesser than or equal to x lesser than or equal to 1,0 lesser than or equal to y lesser than or equal to 1} is the closed unit square f(x,y)=3x-2y-1+1. Find the absolute maximum and minimum values of f(x,y) on including the boundary. The force acting on an object of mass 2 units is given by the vector V(t)= 0,16 cos (2t), 16 sin (2t). At t-0, the object is at (0,0,0) and is travelling with initial velocity v(0)=

Explanation / Answer

here ,

resistivity , p = 2.44 *10^-8 Ohm.m

d = 0.5 mm

L = 44 cm = 0.44 m

current , I = 380 mA

let the number of electrons per second is n

n = charge passing each second/charge on each electron

n = (380 *10^-3 * 1)/(1.602 *10^-19)

n = 2.4 *10^18

the number of electron passing each second is A) 2.4 *10^18

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