A coffee maker is rated at 1.20 kW, a toaster at 1.10 kW, and a waffle maker at 1.40 kW. The three appliances are connected in parallel to a common 120 V household circuit. (d) What total current is delivered to the appliances when all are operating simultaneously?

A coffee maker is rated at 1.20 kW, a toaster at 1.10 kW, and a waffle maker at 1.40 kW. The three appliances are connected in parallel to a common 120 V household circuit. (d) What total current is delivered to the appliances when all are operating simultaneously?

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 12OQ: When operating on a 120-V circuit, an electric heater receives 1.30 103 W of power, a toaster...

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Question

A coffee maker is rated at 1.20 kW, a toaster at 1.10 kW, and a waffle maker at 1.40 kW. The three appliances are connected in parallel to a common 120 V household circuit. (d) What total current is delivered to the appliances when all are operating simultaneously?

Expert Solution

Step 1

In a parallel circuit connection, the potential difference across each resistor is equal to the source voltage. The current in each arm is divided.

Power delivered is given by: $P = VI$

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