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Resistors 101

meh 10/2001
 

Answers to Examples

Smaller (1/4 and 1/2 watt) Resistors

R1

Yel Vio Brn Red Yellow Violet Brown Red
4 7 1 × 102 = 47100 Ω (47.1 KΩ)

R2

Brn Blk Yel Sil Brown Black Yellow Silver
1 0 × 104 (10%) = 100000 Ω (100 KΩ)

R3

Yel Vio Red Brn Yellow Violet Red Gold
4 7 × 102 (5%) = 4700 Ω (4.7 KΩ)

R4

Grn Brn Red Gol Green Brown Red Gold
5 1 × 102 (5%) = 5100 Ω (5.1 KΩ)

R5

Bn Bk Or Go Brown Black Orange Gold
1 0 × 103 (5%) = 10000 Ω (10 KΩ)

R6

Bn Gn Or Rd Brown Green Orange Red
1 5 3 × 102 = 15300 Ω (15.3 KΩ)

R7

8 0 6 1 8 0 6 1
8 0 6 × 101 = 8060 Ω (8.06 KΩ)

Larger (1 watt and up) Resistors

PR1

Or Gn Bu Si Orange Green Blue Silver
3 5 × 106 (10%) = 35000000Ω (35 MΩ)

PR2

Rd Vi Bk Go Red Violet Black Gold
2 7 × 100 (5%) = 27 Ω

PR3

Gn Bu Rd Si Green Blue Red Silver
5 6 × 102 (10%) = 5600 Ω (5.6 KΩ)

PR4

Or Or Or Si Orange Orange Orange Silver
3 3 × 103 (10%) = 33000 Ω (33 KΩ)

PR5

Rd Bk Or Go Yl Red Black Orange Gold Yellow
2 0 × 103 (5%) = 20000 Ω (20 KΩ)
This is one of the wierdos I warned you about - ignore the yellow band

PR6

Rd Rd Go Go Red Red Gold Gold
2 2 × 10-2 (5%) = .22 Ω

PR7

Or Bk Bk Go Orange Black Black Gold
3 0 × 100 (5%) = 30 Ω

PR8

Bn Bk Go Go Brown Black Gold Gold
1 0 × 10-2 (5%) = .1 Ω

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