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Use the Formula 1R=1R1+1R2+1R3\frac { 1 } { R } = \frac { 1 } { R _ { 1 } } + \frac { 1 } { R _ { 2 } } + \frac { 1 } { R _ { 3 } }

Question 220

Multiple Choice

Use the formula 1R=1R1+1R2+1R3\frac { 1 } { R } = \frac { 1 } { R _ { 1 } } + \frac { 1 } { R _ { 2 } } + \frac { 1 } { R _ { 3 } } . Given R=1,810ΩR = 1,810 \Omega , R1=4,220ΩR _ { 1 } = 4,220 \Omega and R2=9,610ΩR _ { 2 } = 9,610 \Omega . Find R3R _ { 3 } .


A) R3=1,460ΩR _ { 3 } = 1,460 \Omega
B) R3=4,730ΩR _ { 3 } = 4,730 \Omega
C) R3=5,430ΩR _ { 3 } = 5,430 \Omega
D) R3=4,600ΩR _ { 3 } = 4,600 \Omega
E) R3=5230ΩR _ { 3 } = 5230 \Omega

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