Dept. of Mechanical Eng.First AttemptTime: 2:00 hourQ1: Using the information provided, find the unknown quantities for the circuit shown infigure(1).P 30 W30 1R- R.2 APRFigure (1)Q2: Choose twwo only.1. Find the color code for 250OKQ resistors with 10% tolerance.2. Calculate the electricity bill if the current reading is 7210 kWh, the previous readingwas 5720 kWh and the average cost is 9¢ per kilowatt-hour.3. If an electric motor having an efficiency of 87% and operating off a 220V line delivers4hp, what input current does the motor draw?Q3: For the circuit shown in figure (2), determine V1. Vs, I2 and Is9 klRs6 k+ VsR 10.4 kIV RE12 k2R.R3 kflE = 28 V12 kfFigure (2)04: For the circuit shown in figure (3), calculate V and I.20 V18 V3060Figure (3)'aad G Muttlakcmail: saad.g.mutlak@tu.edu.iq

In this question , we have to find out unknown quantities with given information... Note:due to…

Answered: 01: Using the information provided,…

01: Using the information provided, find the unknown quantities for the circuit shown in figure1). P- 30 W Is 30 1R E 2 A PR Figure (

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter27: Service-entrance Equipment

Section: Chapter Questions

Problem 32R

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Question

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Dept. of Mechanical Eng.
First Attempt
Time: 2:00 hour
Q1: Using the information provided, find the unknown quantities for the circuit shown in
figure(1).
P 30 W
30 1R
- R.
2 A
PR
Figure (1)
Q2: Choose twwo only.
1. Find the color code for 250OKQ resistors with 10% tolerance.
2. Calculate the electricity bill if the current reading is 7210 kWh, the previous reading
was 5720 kWh and the average cost is 9¢ per kilowatt-hour.
3. If an electric motor having an efficiency of 87% and operating off a 220V line delivers
4hp, what input current does the motor draw?
Q3: For the circuit shown in figure (2), determine V1. Vs, I2 and Is
9 kl
Rs
6 k
+ Vs
R 10.4 kI
V RE
12 k2
R.
R3 kfl
E = 28 V
12 kf
Figure (2)
04: For the circuit shown in figure (3), calculate V and I.
20 V
18 V
30
60
Figure (3)
'aad G Muttlak
cmail: saad.g.mutlak@tu.edu.iq

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