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7th Edition

Douglas A. Skoog + 2 others

Publisher: Cengage Learning

ISBN: 9781305577213

Chapter 2, Problem 2.1QAP

Interpretation Introduction

**Interpretation:**

A suitable combination of the resistors with the indicated voltage needs to be determined.

**Concept Introduction** **:**

The resistors in series from a voltage divider in that fraction of the total voltage appear across each resistor.

Expert Solution

A suitable combination of the resistors that would give the indicated voltages are

Consider the diagram, all the resistors (

The resistors in series from a voltage divider in that fraction of the total voltage appear across each resistor.

Applying Ohm’s law,from A to B, the voltage across the resistor

The fraction of the total voltage appears across resistor

Here

Given

Therefore,

Similarly,

Substitute the value

Therefore,

Here,

Hence, it is shown that

:

In the case of series resistors, the value of

Or,

Interpretation Introduction

**Interpretation:**

The IR drop across

**Concept Introduction** **:**

According to the Kirchhoff’s law, the algebraic sum of the voltage around the closed path is zero.

Expert Solution

IR drop across

According to the Kirchhoff’s law, the algebraic sum of the voltage around the closed path is zero.

It is represented as

Given,

IR drop across

Interpretation Introduction

**Interpretation:**

The current drawn from the source needs to be determined.

**Concept Introduction** **:** According to the Ohms law

Here, V is voltage, I is current, and R is resistance.

Expert Solution

Current drawn from the source is 0.002A.

According to Ohm’s law,

Consider the series resistors,

Thus, the current drawn from the source is 0.002A.

Interpretation Introduction

**Interpretation:**

The dissipated power needs to be calculated.

**Concept Introduction:**

The power dissipated in the circuit is the product of current and potential difference across the element.

Expert Solution

The power dissipated by the circuit is 0.02W.

Consider the power is:

Hence, the dissipated power is 0.02W.

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