Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Physics Expert

A small but measurable current of 1.1 10-10A exists in a copper wire whose diameter is 3.1 mm. Assume the current is uniform.

(a) Calculate the current density.

(b) Calculate the electron drift speed.

Physics, Academics

  • Category:- Physics
  • Reference No.:- M91053557

Have any Question?


Related Questions in Physics

Question a projectile is fired with speed v0 at an angle

Question: A projectile is fired with speed (V0) at an angle theta) from the horizontal as shown in the figure . Part B: What is the range of the projectile? Express the range in terms of (V0, theta, or g) Part C: Find th ...

Question a rock thrown with speed 105 and launch angle

Question: A rock thrown with speed 10.5 and launch angle 30.0(above the horizontal) travels a horizontal distance of = 18.0before hitting the ground. From what height was the rock thrown? Use the value = 9.810 for the fr ...

Please help with this problemssuppose you walk 16m

Please help with this problems: Suppose you walk 16m straight west and then 22.5m straight north. How far are you in meters from your starting point (numeric value only, no expression)? What is the compass direction, in ...

Question pluto moves in a fairly elliptical orbit around

Question: Pluto moves in a fairly elliptical orbit around the sun. Pluto's speed at its closest approach of 4.43 *10^9 km is 6.12 km/s. What is Pluto's speed at the most distant point in its orbit, where it is 7.30 *10^9 ...

Question a rocket starts from rest and moves upward from

Question: A rocket starts from rest and moves upward from the surface of the earth. For the first 10s of its motion, the vertical acceleration of the rocket is given by ay=(3.00m/s3)t, where the +y-direction is upward. W ...

What What are  (a)  the  x  component,  (b)  the  y  component, and  (c)  the  z

What are  (a)  the  x  component,  (b)  the  y  component, and  (c)  the  z  component of  if r=a-b+c if a =8.0i+6.0j-3.3k, b=-5.5i+4.5j +6.0k and c=1.1i+5.6j+6.3k.  (d)  Calculate the angle between  and the positive  z ...

Question a solid gold bar is pulled up from the hold of the

Question: A solid gold bar is pulled up from the hold of the sunken RMSTitanic. (a) What happens to its volume as it goes from the pressure atthe ship to the lower pressure at the ocean's pressure? (b) The pressure diffe ...

Question what is the purpose of the rheostat in the

Question: What is the purpose of the rheostat in the resistance and resistivity experiment? 1) to limit the current in the circuit. 2) to overheat. 3) as an aid to adjusting the current in the circuit. 4) it is the resis ...

Question in this problem you will derive two different

Question: In this problem you will derive two different formulas for the power delivered to a resistor. What is the power P supplied to a resistor whose resistance is R when it is known that it has a voltage V across it? ...

Question a piano tuner stretches a steel piano wire with a

Question: A piano tuner stretches a steel piano wire with a tension of 765 N. The steel wire has a length of 0.500m and a mass of 3.75g . 1. What is the frequency f1 of the string's fundamental mode of vibration? 2. What ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As