Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
1st Edition
ISBN: 9780078945830
Author: Charles William McLaughlin, Marilyn Thompson, Dinah Zike
Publisher: Glencoe Mcgraw-Hill
Question
Book Icon
Chapter 15, Problem 19R
To determine

To Choose: The correct option.

Expert Solution & Answer
Check Mark

Answer to Problem 19R

Option B

Explanation of Solution

Introduction:

A physical change is defined as a change in shape, size and state of matter while the identity remains same.

Two different wires are twisted. Since both wires have similar metal for conduction,when current passes through it, there is no change in its property. Therefore, only size of the metal has been changed at joint.

Thus, it is a physical change.

Conclusion:

Thus, the correct option is B.

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