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Physics 2 Assignment 1S: Resistor Color Coding and Inductor Calculations, Assignments of Physics

University of Cebu (UC)Physics

This file contains electonics Engineering examination with answers.

Typology: Assignments

2019/2020

Available from 11/24/2020

jonehsa-yucor
jonehsa-yucor ๐Ÿ‡ต๐Ÿ‡ญ

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Physics 2
Assignment 1S
YUCOR, JONEHSA F. Engr. Rogelio Lansa
BSECE II Nov.13, 2020
I. Resistor Color Coding
a. Give the Rmax and Rmin of the following 4 band resistors
i. Green orange blue silver
Answer:
Green Orange Blue Silver
5 3
10๎˜ƒ
โˆ“10
%
53 ร— 10๎˜ƒร— 10%
53๎˜ˆ ๎˜Šโ„Ž๎˜Œ๎˜ ยฑ 5.3 ๎˜ˆ ๎˜Šโ„Ž๎˜Œ๎˜
๎˜๎˜Œ๎˜‘๎˜’ = 47.7 ๎˜ˆ ๎˜Šโ„Ž๎˜Œ๎˜
๎˜๎˜Œ๎˜–๎˜— = 58.3 ๎˜ˆ ๎˜Šโ„Ž๎˜Œ๎˜
ii. Brown green violet gold
Answer:
Brown Green Violet Gold
1 5
10๎˜™
โˆ“5
%
15 ร— 10๎˜™ร— 5%
150๎˜ˆ ๎˜Šโ„Ž๎˜Œ๎˜ ยฑ 7.5 ๎˜ˆ ๎˜Šโ„Ž๎˜Œ๎˜
๎˜๎˜Œ๎˜‘๎˜’ = 142.5 ๎˜ˆ ๎˜Šโ„Ž๎˜Œ๎˜
๎˜๎˜Œ๎˜–๎˜— = 157.5๎˜ˆ ๎˜Šโ„Ž๎˜Œ๎˜
iii. Red red red silver
Answer:
Red Red Red Silver
2 2
10๎˜›
โˆ“10
%
22 ร— 10๎˜›ร— 10%
2.2 ๎˜œ ๎˜Šโ„Ž๎˜Œ๎˜ ยฑ 220 ๎˜Šโ„Ž๎˜Œ๎˜
๎˜๎˜Œ๎˜‘๎˜’ = 1.98 ๎˜œ ๎˜Šโ„Ž๎˜Œ๎˜
๎˜๎˜Œ๎˜–๎˜— = 2.42 ๎˜œ ๎˜Šโ„Ž๎˜Œ๎˜
iv. Orange white blue gold
Answer:
Orange White Blue Gold
3 9
10๎˜ƒ
โˆ“5
%
39 ร— 10๎˜ƒร— 5%
39 ๎˜ˆ ๎˜Šโ„Ž๎˜Œ๎˜ ยฑ 1.95 ๎˜ˆ๎˜Šโ„Ž๎˜Œ๎˜
๎˜๎˜Œ๎˜‘๎˜’ = 37.05 ๎˜ˆ ๎˜Šโ„Ž๎˜Œ๎˜
๎˜๎˜Œ๎˜–๎˜— = 40.95 ๎˜ˆ ๎˜Šโ„Ž๎˜Œ๎˜
pf3
pf4
pf5

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Download Physics 2 Assignment 1S: Resistor Color Coding and Inductor Calculations and more Assignments Physics in PDF only on Docsity!

Physics 2 Assignment 1S

YUCOR, JONEHSA F. Engr. Rogelio Lansa BSECE II Nov.13, 2020

I. Resistor Color Coding a. Give the Rmax and Rmin of the following 4 band resistors i. Green orange blue silver Answer: Green Orange Blue Silver 5 3 10 ^ โˆ“ 10% 53 ร— 10 ^ ร— 10% 53 โ„Ž ยฑ 5.3 โ„Ž = 47.7 โ„Ž = 58.3 โ„Ž

ii. Brown green violet gold Answer: Brown Green Violet Gold 1 5 10 ^ โˆ“ 5% 15 ร— 10 ^ ร— 5% 150 โ„Ž ยฑ 7.5 โ„Ž = 142.5 โ„Ž = 157.5 โ„Ž

iii. Red red red silver

Answer: Red Red Red Silver 2 2 10 ^ โˆ“ 10% 22 ร— 10 ^ ร— 10% 2.2 โ„Ž ยฑ 220 โ„Ž = 1.98 โ„Ž = 2.42 โ„Ž

iv. Orange white blue gold

Answer: Orange White Blue Gold 3 9 10 ^ โˆ“ 5% 39 ร— 10 ^ ร— 5% 39 โ„Ž ยฑ 1.95 โ„Ž = 37.05 โ„Ž = 40.95 โ„Ž

v. Yellow violet silver gold

Answer: Yellow Violet Silver Gold 4 7 10 ^ or 0.01 โˆ“ 5% 47 ร— 10 ^ ร— 5% 0.47 โ„Ž ยฑ 23.5 โ„Ž = 0.4465 446.5 โ„Ž = 0.4935 493.5 โ„Ž

vi. Blue black black silver

Answer: Blue Black Black Silver 6 0 1 โˆ“ 10% 60 ร— 1 ร— 10% 60 โ„Ž ยฑ 6 โ„Ž = 54 โ„Ž = 66 โ„Ž

b. Give the color of the following 4 band resistors i. 6.8 ohms 6 8 0.1 โˆ“ 5% 6.8 ohms Blue Gray Gold Gold

ii. 0.39 ohms 3 9 0.01 (^) โˆ“ 5% 0.39 ohms Blue Gray Silver Gold

iii. 470 M ohms 4 7 10 ^ โˆ“ 5% 470 M ohms Yellow Violet Violet Gold

iv. 1 ohm 1 0 0.1 (^) โˆ“ 5% 1 ohms Brown Black Gold Gold

v. 0.22 ohms 2 2 10 ^ โˆ“ 5% 0.22 ohms Red Red Silver Gold

vi. 570 k ohms 5 7 10 ^ โˆ“ 5% 570 k ohms Green Violet Yellow Gold

Coil (inductor) 250 turns Resistance of coil 3 ohms Voltage at coil 6 V Current flowing in inductor 2 A mmf 500 At

Formula: = , = ร—

= 3 โ„Ž6 = 2 ร— 250

b. Field Intensity (H)

mmf 100 At Length of inductor 0.2 m Field intensity of coil 500 At/m

Formula: =

Field intensity of coil 50 At/m Relative permeability 300 Flux density in Tesla 15 kT

Formula: = ร—

= 300 ร— 50 /

= 15 ร— 10 ^ 15

c. Calculate the induced voltage when a magnetic field cuts across a coil of 500 turns at the rate of 100 ฮผWb/s. Answer:

Where: N= 500 โˆ…

= 100 ฮผWb/s โ†’ 100 ร— 10^ Wb/s

Solution:

= (500)( 100 ร— 10 ^ )

d. The magnetic flux surrounding a coil change from 1000 to 6000 Mx in 5 ฮผs. If the coil has 200 turns, how much is the induced voltage?

Where:

N= 200

โˆ… = 6000-1000 Mx

= 5000 Mx โ†’ 0.00005 Wb

= 5 ฮผs โ†’ 5 ร— 10^ s

Sol:

5 ร— 10 ^

= 2 ร— 10^ or 2k V