1. V R P 1 2 2 3 10 120 3 2. V R 1 30 90 3 10 3. in V R P 1 10 3 2 2 3 T 40 co

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
Section: Chapter Questions
Problem 21CQ: What is wrong with the following expressions? How can you correct them? (a) C=AB , (b) C=AB , (c)...
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Question
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1.
V
R
P
1
2
2
3
10
120
3
2.
V
R
1
30
90
3
10
3.
in
V
R
P
1
10
3
2
2
3
T
40
co
Transcribed Image Text:1. V R P 1 2 2 3 10 120 3 2. V R 1 30 90 3 10 3. in V R P 1 10 3 2 2 3 T 40 co
Expert Solution
Step 1

Since you have uploaded a question with multiple sub-parts, we will solve the first three sub-parts (1, 2, and 3). To get solved the remaining sub-parts, re-upload the question with the remaining sub-parts.

 

(1)

 

Consider the first circuit. All the three resistances are connected in series, the current passes thought all the resistors will be the same. Use the Ohm’s law equation, solve for the resistance R2.

Physics homework question answer, step 1, image 1

Step 2

Use the Ohm’s law equation, solve for the potential V1, V2, and V3. Also, calculate the power delivered to each resistor.

Physics homework question answer, step 2, image 1

 

Therefore, the complete data for the first circuit is,

Physics homework question answer, step 2, image 2

Step 3

(2)

 

Consider the second circuit. All the three resistances are connected in parallel, the voltage across each resistor will be the same. Use the Ohm’s law equation, solve for the unknown resistances, and the currents the resistors.

Physics homework question answer, step 3, image 1

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