Question: A wire is connected across a steady voltage source. (a) If that wire is replaced with one of the same material that is twice as

A wire is connected across a steady voltage source.
(a) If that wire is replaced with one of the same material that is twice as long and has twice the cross- sectional area, how will the current in the wire be affected?
(b) How will the current be affected if, instead, the new wire has the same length as the old one but half the diameter? In both cases, explain your reasoning.

Step by Step Solution

★★★★★

3.45 Rating (155 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a The resistance is so the ratio of the two resi... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

530-P-M-C-R (335).docx

120 KBs Word File

Students Have Also Explored These Related Electricity and Magnetism Questions!

A 15-cm-long nichrome wire is connected across the terminals of a 1.5 V battery. a. What is the electric field inside the wire? b. What is the current density inside the wire? c. If the current in...

The resistivity of a metal increases slightly with increased temperature. This can be expressed as = 0 [1 + (T - T 0 )], where T 0 is a reference temperature, usually 20C, and is the temperature...

A voltage V is connected across a wire of length and radius r. How is the electron drift speed affected if (a) is doubled, (b) r is doubled, (c) V is doubled, assuming in each case that other...

Experiment 5: Using an Oscilloscope The purpose of this experiment is to familiarize you with the myDAQ oscilloscope. The oscilloscope is the most complicated instrument in a typical Electrical...

1. A defibrillator passes 11 A of current through the torso of a person for 0.0065 s. Part (a) How much charge moves in C? 2. Suppose you have a 3.2 V flashlight What current, in amperes, flows...

Can you please answer this with solutions and explanations thank you!!! Reference: https://drive.google.com/file/d/13bzmwuJTRebDttmvPVOnEedEmDf30Nbm/view What's More Questions you cannot resist!...

1. Two lighboule are each connected to a voltage of 120 V. One has a power of 25 W. the atar 100 W. Which bulb carries more current? 25Wbab 100 W bubb 2. A 12 V buttery is connected across a device...

Please complete all the graphs and questions in this assignment. Use the pictures below to help. Table 1: Experimental Data: Resistors in Series Battery V1 Voltage 11 V2 Voltage 12 V3 Voltage I; V123...

1: A defibrillator sends a 7.5 A current through the chest of a patient by applying a 12000 V voltage as in the figure. What is the resistance of the path in k? 2: During open-heart surgery, a...

Answer ALL these questions, Use the physics reference table from google if needed. Please explain and show work behind answers as much as possible. Enter D G Name : Zixiang Lin Pr. Roster #: CO Take...

List and explain the five Cs of credit management.

Your company has an existing loan with monthly payments, principal, and interest of $1,883.65. There are 48 payments left on the loan and the loan has an unpaid balance of $74,269.00. Your company is...

Construcciones Omega, S. A. de C. V., es una empresa ubicada en la Ciudad de Mxico que se prepara para operar exclusivamente con el Gobierno Federal en proyectos de construccin de telefricos, pero...

Are there any customs related to how or where one sits?

A block oscillating on a spring has period T = 2 s. What is the period if: a. The blocks mass is doubled? Explain. Note that you do not know the value of either m or k, so do not assume any...

An air-track glider is attached to a spring. The glider is pulled to the right and released from rest at t = 0 s. It then oscillates with a period of 2.0 s and a maximum speed of 40 cm/s. a. What is...

A pendulum on Planet X, where the value of g is unknown, oscillates with a period T = 2 s. What is the period of this pendulum if: a. Its mass is doubled? Explain. Note that you do not know the value...

Please show your work and not using excel. Thank you! A.What is the value of a $1000 par value bond, 8% coupon paid annually, 25 years to maturity if investors require a 9.5% return? B.What is the...

Compare these 4 scenarios by calculating the future values. You are starting your career with $0 savings in your retirement account. Assume you will work 30 years then retire with a half million...

In a container of gas, all molecules have the same kinetic energy at a certain temperature T. True O False