3. How much is the resistance of an electric iron connected to a 20 V source which draws a current of20A?4. How much is resistance is needed by your body to resist a current of 8 x103 A from a 110V?5. A certain light bulb has a résistance of 240 2 when lighted. How much current wili flow through itwhen connected across a 220 V, its normal operating voltage?

Ohm's law V=IR where V is voltage, I is current and R is resistance.

How much is the resistance of an electric iron connected to a 20 V source which draws a current of 20A? How much is resistance is needed by your body to resist a current of 8 x10 A from a 110V? 5. A certain light bulb has a résistance of 240 2 when lighted. How much current will flow through it when connected across a 220 V, its normal operating voltage?

How much is the resistance of an electric iron connected to a 20 V source which draws a current of 20A? How much is resistance is needed by your body to resist a current of 8 x10 A from a 110V? 5. A certain light bulb has a résistance of 240 2 when lighted. How much current will flow through it when connected across a 220 V, its normal operating voltage?

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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