Question

Calculate the diameter of the silver wire, given that the voltage across the wire is 3.1V....

Calculate the diameter of the silver wire, given that the voltage across the wire is 3.1V. Using the data in Table 30.2; I. compute the resistant of the copper wire 3mm in diameter and 2m long. [ANS: 4.81 X 10-3 Ω] II. What would be the current flow if the potential drop across the ends of the wire is 0.05V? [ANS: 10.4 A] III. What is the current density? [ANS: 1.5 X 106 A/M2]

Engineering   Chemical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

#HOPE THIS WILL HELP YOU..

#THANK YOU...!!!!!!!

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
Wires aren't really ideal. The voltage drop across a current-carrying wire can be significant unless the...
Wires aren't really ideal. The voltage drop across a current-carrying wire can be significant unless the resistance of the wire is quite low. Suppose a 100 ft extension cord is being used to provide power to an electric lawn mower. The cord carries a 10 Acurrent. The copper wire in a typical extension cord has a 1.3 mm diameter. Part A What is the voltage drop across a 100 ft length of wire at this current? Express your answer using...
a) A student measured the voltage across and current through an aluminum wire using a voltmeter...
a) A student measured the voltage across and current through an aluminum wire using a voltmeter and ammeter. The power supply was a battery. Sketch the circuit and how the student attached the meters to make her measurements. b) Here is the student's data: (0, 0), (1.01, 0.35), (1.49, 0.80), (2.67, 1.10), (3.00, 1.35). Each datum is given as a (volts, amps) pair. Make a scatter plot of current versus voltage. Label your axes appropriately. Find the best estimate of...
There is a wire made of copper with a diameter of 3.26 mm. A current of...
There is a wire made of copper with a diameter of 3.26 mm. A current of 20.0 A was applied to this wire. Answer the following question assuming that the electron density of copper is n = 8.47 × 1028 m-3. (1) Find the current density. (2) Find the electron drift velocity. (3) When the resistivity of copper is 1.70 × 10-8 Ω·m, find the voltage drop that occurs along the length of this wire. (4) Find the electron mobility.
A 2-V potential difference is maintained across a 2m length wire that has a cross-section area...
A 2-V potential difference is maintained across a 2m length wire that has a cross-section area of 8x10-7 m2. If the wire is made of material that has a resistivity of 8 × 10–8 Ω ⋅ m, what is the current (in A) in the wire? 45                          50               10                        35                          27.5
A 2.36-mm diameter copper wire (resistivity 1.68 × 10-8Ω∙m) carries a current of 15.6 A. What...
A 2.36-mm diameter copper wire (resistivity 1.68 × 10-8Ω∙m) carries a current of 15.6 A. What is the potential difference (in volts) between two points 194 m apart? A carbon resistor has a resistance of 19.17 Ω at a temperature of 21.1 °C. At what temperature (in °C) its resistance will drop to 12.93 Ω? (The temperature coefficient of resistivity for carbon is -5.0 × 10-4/C°.) A battery with an emf of 5.87 volts and an internal resistance 2.47 ohms...
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...
A 3.00 m long copper wire has a 1.20 m long section with a 1.60 mm...
A 3.00 m long copper wire has a 1.20 m long section with a 1.60 mm diameter and a 1.80 m long section with a 0.80 mm diameter. The electric current is 2.5 mA (milli Amps) in the 1.60 mm diameter section. The electrical resistivity of copper is 1.68 x 10^-8 Ω m. a) (10pts) What is the current density in the 1.60 mm diameter section? b) (10pts) What is the magnitude of the electric field in N / C...
An aluminum wire with a diameter of 0.105 mm has a uniform electric field of 0.265...
An aluminum wire with a diameter of 0.105 mm has a uniform electric field of 0.265 V/m imposed along its entire length. The temperature of the wire is 45.0° C. Assume one free electron per atom. (a) Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity of aluminum at this temperature. ρ = ..... Ω·m (b) What is the current density in the wire? J =....... MA / m2 (c) What is the total...
An aluminum wire with a diameter of 0.095 mm has a uniform electric field of 0.225...
An aluminum wire with a diameter of 0.095 mm has a uniform electric field of 0.225 V/m imposed along its entire length. The temperature of the wire is 45.0° C. Assume one free electron per atom. (a) Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity of aluminum at this temperature. ρ =  Ω·m (b) What is the current density in the wire? J =  MA / m2 (c) What is the total current in the...
1) 2 point charges are separated by a distance of 8 cm. The left charge is...
1) 2 point charges are separated by a distance of 8 cm. The left charge is 48 mC and the right charge is -16mC. Using a full sheet of paper: draw the 2 charges separated by 8cm, centered in the sheet. (if you are missing a ruler estimate 8cm as ⅓ a paper sheet length). [6] a) Draw field lines to indicate the electric fields for this distribution. [4] b) Draw 3 equipotential surfaces, 1 each, that pass: -Through the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT