A 25 W, 120 V bulb has a cold resistance of 45 ohm. When the voltage is switched on. What is the instantaneous current? What is the current current under normal operation? CHOICES: A.) 6.72 A, 0.280 A B. 7.26 A, 2.80 A C. 0.208 A, 2.67 A D. 2.67 A, 0.208 A

A 25 W, 120 V bulb has a cold resistance of 45 ohm. When the voltage is switched on. What is the instantaneous current? What is the current current under normal operation? CHOICES: A.) 6.72 A, 0.280 A B. 7.26 A, 2.80 A C. 0.208 A, 2.67 A D. 2.67 A, 0.208 A

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 55P: A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any...

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Question

A 25 W, 120 V bulb has a cold resistance of 45 ohm. When the voltage is switched on. What is the instantaneous current? What is the current current under normal operation?

CHOICES:

A.) 6.72 A, 0.280 A

B. 7.26 A, 2.80 A

C. 0.208 A, 2.67 A

D. 2.67 A, 0.208 A

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