A circuit is made of two 1.2 volt batteries and three light bulbs as shown in the figure. When the switch is closed and the bulbs are glowing, bulb 1 has a resistance of 8 ohms, bulb 2 has a resistance of 39 ohms, bulb 3 has a resistance of 25 ohms, and the copper connecting wires have negligible resistance. You can also neglect the internal resistance of the batteries. A. Bulb 2 Bulb 1 Bulb 3 (a) With the switch open, indicate the approximate surface charge on the circuit diagram.(Do this on paper. Your instructor may ask you to turn in this work.) Refer to your diagram to decide which of the following statements about the circuit (with the switch open) are true: O There is no excess charge on the surface of the wire at location C. V The electric field in the filament of bulb 3 is zero. O The surface charge on the wire at location B is positive. O There is a large gradient of surface charge between locations M and L. O The electric field in the air between locations B and C is zero. (b) With the switch open, find these potential differences: VB - Vc = 2.4 Vo - Vk = 0 V

A circuit is made of two 1.2 volt batteries and three light bulbs as shown in the figure. When the switch is closed and the bulbs are glowing, bulb 1 has a resistance of 8 ohms, bulb 2 has a resistance of 39 ohms, bulb 3 has a resistance of 25 ohms, and the copper connecting wires have negligible resistance. You can also neglect the internal resistance of the batteries. A. Bulb 2 Bulb 1 Bulb 3 (a) With the switch open, indicate the approximate surface charge on the circuit diagram.(Do this on paper. Your instructor may ask you to turn in this work.) Refer to your diagram to decide which of the following statements about the circuit (with the switch open) are true: O There is no excess charge on the surface of the wire at location C. V The electric field in the filament of bulb 3 is zero. O The surface charge on the wire at location B is positive. O There is a large gradient of surface charge between locations M and L. O The electric field in the air between locations B and C is zero. (b) With the switch open, find these potential differences: VB - Vc = 2.4 Vo - Vk = 0 V

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 8OQ: The terminals of a battery are connected across two resistors in parallel. The resistances of the...

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