You have done the Wheatstone Bridge experiment using a power supply with emf Vo and a wire of length L and resistivity p and determined the balance point for unknown resistance Ry, known resistance Rs, Which of the following will keep fixed the ratio of L2/L? a. Changing the known resistance and fixing everything else. b. Varying the length or resistivity of the wire and keeping everything else the same. c. Changing the unknown resistance and keeping everything else the same. d. Changing the resistivity of the wire and keeping everything else the same.

You have done the Wheatstone Bridge experiment using a power supply with emf Vo and a wire of length L and resistivity p and determined the balance point for unknown resistance Ry, known resistance Rs, Which of the following will keep fixed the ratio of L2/L? a. Changing the known resistance and fixing everything else. b. Varying the length or resistivity of the wire and keeping everything else the same. c. Changing the unknown resistance and keeping everything else the same. d. Changing the resistivity of the wire and keeping everything else the same.

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter7: Electricity

Section: Chapter Questions

Problem 16Q

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