Concept explainers
(a)
To Explain: The new resistance when the length of the copper wire is halved.
(a)
Explanation of Solution
Introduction:
Resistance is a property of element which is introduced in a circuit or the material of the
The resistance of a wire depends on its length. If the length of the wire is halved, the value of resistance would also be halved.
Conclusion:
Thus, new resistance would be 5 ohms.
(b)
To Explain: The new resistance when the length of the copper wire is halved.
(b)
Explanation of Solution
Introduction:
Resistance is a property of element which is introduced in a circuit or the material of the conducting wire. When current is passed through a conducting wire, it heats up.
Resistance of a wire depends on its length
If the wire is doubled such that the length is halved and cross-sectional area is doubled, then the resistance of the wire would be one-fourth of the former value.
Conclusion:
Thus, new resistance would be
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Conceptual Physics: The High School Physics Program
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