1. (10') (a) A resistor has four color bands brown, orange, yellow, and Gold. What is its resistance? (b) A 60-W/120V light bulb is connected to 120 v. What is its resistance? 2. (20') (a) A cylindrical conductor has resistance of Ro = 402. If we decrease the radius of the conductor by a factor of 2, while keeping the rest fixed, what is the new resistance? (b) A battery with emf of 12 V, with an internal resistance of r = 0.52, is connected in series with this cylindrical conductor (with the radius reduced). What is its terminal voltage (V = E - Ir)? Keep at least six sig. fig.

1. (10') (a) A resistor has four color bands brown, orange, yellow, and Gold. What is its resistance? (b) A 60-W/120V light bulb is connected to 120 v. What is its resistance? 2. (20') (a) A cylindrical conductor has resistance of Ro = 402. If we decrease the radius of the conductor by a factor of 2, while keeping the rest fixed, what is the new resistance? (b) A battery with emf of 12 V, with an internal resistance of r = 0.52, is connected in series with this cylindrical conductor (with the radius reduced). What is its terminal voltage (V = E - Ir)? Keep at least six sig. fig.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 69AP: Consider the circuit below. The battery has an emf of = 30.00 V and an internal resistance of r =...

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