b. When you use an instrument like an Ammeter to measure current in an electrical circuit the measured value of the current is not the actual value of the current. What is the main reason for this? State a mathematical expression that can be used to measure this effect. What measure would you take to reduce this problem?c. An Ammeter with an Internal resistance 200Ω is used to measure the current in a circuit with three resistances in series. The values of the three resistances are 100Ω, 200Ω and 400Ω respectively. There is a single power supply with a value of 12V connected in series with the three resistors. Using the expression you have stated in (b) obtain the loading effect when measuring the current of this circuit. When you use an instrument like an Ammeter to measure current in an electrical circuit themeasured value of the current is not the actual value of the current. What is the main reason for this?State a mathematical expression that can be used to measure this effect. What measure would youtake to reduce this problem?An Ammeter with an Internal resistance 200 2 is used to measure the current in a circuit with threeresistances in series. The values of the three resistances are 1002, 2002 and 400 2 respectively.There is a single power supply with a value of 12V connected in series with the three resistors.Using the expression you have stated in (b) obtain the loading effect when measuring the currentof this circuit.

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Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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b. When you use an instrument like an Ammeter to measure current in an electrical circuit the
measured value of the current is not the actual value of the current. What is the main reason for this?
State a mathematical expression that can be used to measure this effect. What measure would you
take to reduce this problem?

c. An Ammeter with an Internal resistance 200Ω is used to measure the current in a circuit with three
resistances in series. The values of the three resistances are 100Ω, 200Ω and 400Ω respectively.
There is a single power supply with a value of 12V connected in series with the three resistors.
Using the expression you have stated in (b) obtain the loading effect when measuring the current
of this circuit.

When you use an instrument like an Ammeter to measure current in an electrical circuit the
measured value of the current is not the actual value of the current. What is the main reason for this?
State a mathematical expression that can be used to measure this effect. What measure would you
take to reduce this problem?
An Ammeter with an Internal resistance 200 2 is used to measure the current in a circuit with three
resistances in series. The values of the three resistances are 1002, 2002 and 400 2 respectively.
There is a single power supply with a value of 12V connected in series with the three resistors.
Using the expression you have stated in (b) obtain the loading effect when measuring the current
of this circuit.

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