2/5 1. The EMF of the battery is 1.4 V and its internal resistance is 12 n. It is conne. external resistance of 10 n by means of a lead wire of resistance 24 n. (a) Find the TPD of the battery. (b) What is the voltage across the external resistance?

2/5 1. The EMF of the battery is 1.4 V and its internal resistance is 12 n. It is conne. external resistance of 10 n by means of a lead wire of resistance 24 n. (a) Find the TPD of the battery. (b) What is the voltage across the external resistance?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.

Question

ANSWEER ALL

2/5
1. The EMF of the battery is 1.4 V and its internal resistance is 12 , It is conne.
external resistance of 10 N by means of a lead wire of resistance 24 N. (a) Find the TPD
of the battery. (b) What is the voltage across the external resistance?

3. A uniform E of 0.8 V/m drives a 12 A current in an iron wire. Find the diameter of the
wire (p of iron = 9.7 x 10-8 - m).

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