1.5 An electric heater is operated by applying potential difference of 60 V across a Nichrome wire of total resistance 9- N. What is the power rating of the heater? 1.6 A 20- W bulb and 50- W bulb are connected in series in a circuit. a. Which bulb hs more current flowing in it? b. If the bulbs are connected in parallel, which one will have a greater current flowing in it. 1.7 How many 3- Q Resistors must be connected in parallel to have a total resistance of 6 - 0 ?

1.5 An electric heater is operated by applying potential difference of 60 V across a Nichrome wire of total resistance 9- N. What is the power rating of the heater? 1.6 A 20- W bulb and 50- W bulb are connected in series in a circuit. a. Which bulb hs more current flowing in it? b. If the bulbs are connected in parallel, which one will have a greater current flowing in it. 1.7 How many 3- Q Resistors must be connected in parallel to have a total resistance of 6 - 0 ?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter28: Direct-current Circuits

Section: Chapter Questions

Problem 28.72AP: Three identical 60.0-W, 120-V lightbulbs are connected across a 120-V power source as shown in...

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