Question

The power through a cylindrical resistor is 2.4 W. If the radius of this resistor is...

The power through a cylindrical resistor is 2.4 W. If the radius of this resistor is 3.8 mm, calculate the length of the resistor. The resistivity of this resistor is 6.2 x10-5 Ω.m, and the magnitude of the current density is 2.6 x105 A/m2.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

..

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The power through a cylindrical resistor is 2.4 W. If the radius of this resistor is...
The power through a cylindrical resistor is 2.4 W. If the radius of this resistor is 3.8 mm, calculate the length of the resistor. The resistivity of this resistor is 6.2 x10-5 Ω.m, and the magnitude of the current density is 2.6 x105 A/m2. a. 32.6 mm b. 72.6 mm c. 12.6 mm d. 52.6 mm
eg An electric field of 16 V/m is produced through a cylindrical wire that has uniform...
eg An electric field of 16 V/m is produced through a cylindrical wire that has uniform radius of 1.8 mm. If the resistivity of the material is ρ= 6.8x10-6 Ω.m, calculate the current passing through the wire. Select one: a. 18 A b. 32 A c. 24 A d. 12 A
A 200 W resistor is made by filling the region between two concentric conducting cylinders 10...
A 200 W resistor is made by filling the region between two concentric conducting cylinders 10 cm long and 1.0 and 2.0 cm radius respectively with a resistive material. What is the resistivity, ρ, of this material? (Method 1: Use the fact that E=ρJ, and that the total current, I, through a cylindrical shell at radius r is always the same. Method 2: Add up the delta-R’s for each cylindrical shell between r1 and r2.)
The current density inside a long, solid, cylindrical wire of radius a = 3.6 mm is...
The current density inside a long, solid, cylindrical wire of radius a = 3.6 mm is in the direction of the central axis and its magnitude varies linearly with radial distance r from the axis according to J = J0r/a, where J0 = 420 A/m2. Find the magnitude of the magnetic field at a distance (a) r=0, (b) r = 2.0 mm and (c) r=3.6 mm from the center.
The current density inside a long, solid, cylindrical wire of radius a = 2.3 mm is...
The current density inside a long, solid, cylindrical wire of radius a = 2.3 mm is in the direction of the central axis and its magnitude varies linearly with radial distance r from the axis according to J = J0r/a, where J0 = 380 A/m2. Find the magnitude of the magnetic field at a distance (a) r=0, (b) r = 1.6 mm and (c) r=2.3 mm from the center.
A Coaxial cable consists of a solid inner cylindrical conductor of radius 2 mm and an...
A Coaxial cable consists of a solid inner cylindrical conductor of radius 2 mm and an outer cylindrical shell of inner radius 3 mm and outer radius 3.5 mm. A current of 15 A flows down the inner wire and an equal return current flows in the outer conductor. If we assume that the currents are uniform over the cross section of the conductors, then calculate the magnetic field at a radius of 2.5 mm (use ampere's law) [A] 2.4...
A thin cylindrical wire carries a current of 1.67 Amperes and has a diameter of 1.02...
A thin cylindrical wire carries a current of 1.67 Amperes and has a diameter of 1.02 mm. The resistivity of the material of the wire is 1.72 x 10 -​ 9​ ​Ω​ m. (a) What is the magnitude of the current density in the wire? (b) What is the magnitude of the electric field in the wire? (c) What is the potential difference between two points in the wire 50 m apart? (d) What is the resistance of a 50...
1- A 10.0-W resistor and a 20.0-W resistor are connected in series with a potentiometer and...
1- A 10.0-W resistor and a 20.0-W resistor are connected in series with a potentiometer and a 9.0-V battery. What should the potentiometer be set at for a total equivalent resistance of 50.0 W in this circuit? a. 10 Ω b. 20 Ω c. 30 Ω d. 50 Ω 2-Batteries are most often connected in a. series. b. parallel. c. both series and parallel. d. neither series nor parallel. (i think parallel) 3- A 9.0-V battery delivers a 1.3-A current...
Solid cylindrical wire of infinitely length has radius R. I, a current, is flowing in the...
Solid cylindrical wire of infinitely length has radius R. I, a current, is flowing in the z direction. Through the cross section of the wire, the current flow is uniformly distributed. 1. Find the current density vector J in the wire. Show your steps and be clear on the formulas. 2. What's the magnitude of the magnetic field at points outside the wire? Use Ampere’s Law. 3. What's the magnitude of the magnetic field at points inside the wire? Again,...
the filament of a light bulb is cylindrical with length l = 20 mm and radius...
the filament of a light bulb is cylindrical with length l = 20 mm and radius r = 0.05 mm. the filament is maintained at a temperature T = 5000 K by an electric current. the filament behaves approximately as a black body, emitting radiation isotropically. at night, you observe the light bulb from a distance D = 10 km with the pupil of your eye fully dilated to a radius r = 3 mm. what is the total power...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT