Find the magnitude of the current density in the wire

Reference no: EM13492131

A copper wire has a square cross section 2.5 mm on a side. The wire is 3.2 m long and carries a current of 4.6 A. The density of free electrons is 8.5 1028/m3.

(a) Find the magnitude of the current density in the wire.

A/m2

(b) Find the magnitude of the electric field.

V/m

Reference no: EM13492131

Questions Cloud

Calculate depreciation expense for 2010 and 2011 : Compute 2009 amortization, 12/31/09 carrying value, 2010 amortization, and 12/31/10 carrying value if the company amortizes the patent over 10 years.

Obtain the speed of the car at the bottom of the driveway : A 2.1 multiplied by 103-kg car starts from rest at the top of a 4.5-m-long driveway that is inclined at 16° with the horizontal. find the speed of the car at the bottom of the driveway

What is the maximum height that he reaches : A daredevil on a motorcycle leaves the end of a ramp with a speed of 38.5 m/s, what is the maximum height that he reaches

Prepare a five year financial and income statement : Need a five year financial statements; income statement, cash flow and balance sheet for the given plan.

Find the magnitude of the current density in the wire : A copper wire has a square cross section 2.5 mm on a side. The wire is 3.2 m long and carries a current of 4.6 A. Find the magnitude of the current density in the wire

Compute the standard entropy change for the reaction : Calculate the standard entropy change for the reaction 2Na(s) + Cl2 (g) --> 2NaCl (s) using the data from the following table: Substance Change in h Change in G S degrees 0.00 0.00 51.30 0.00 0.00 223.1 -411.0 -384.0 72.10

Find the weight of the heaviest automobile : The mechanical advantage of a hydraulic jack is 450. Find the weight of the heaviest automobile that can be lifted by an applied force of 60.0 N

Explain will caco3 be precipitating when ca2 : given the following information, will caco3 be precipitating when Ca2+ = (0.01 mol/l, CO3 2- + HCO3 - + H2CO3 = 0.1 mol/l )

What is the length of the vine : A monkey is swinging on a vine. The monkey's mass is 72kg, What is the length of the vine

User Account

All Pages