Use the Formula $\frac { 1 } { R } = \frac { 1 } { R _ { 1 } } + \frac { 1 } { R _ { 2 } } + \frac { 1 } { R _ { 3 } } + \frac { 1 } { R _ { 4 } }$

question 129

Multiple Choice

Use the formula $\frac { 1 } { R } = \frac { 1 } { R _ { 1 } } + \frac { 1 } { R _ { 2 } } + \frac { 1 } { R _ { 3 } } + \frac { 1 } { R _ { 4 } }$ . Given $R _ { 1 } = 605 \Omega$ , $R _ { 2 } = 775 \Omega$ , $R _ { 3 } = 1,050 \Omega$ and $R _ { 4 } = 1,950 \Omega$ Find R.

• A) \(R = 946 \Omega\)
• B) \(R = 327 \Omega\)
• C) \(R = 227 \Omega\)
• D) \(R = 401 \Omega\)
• E) \(R = 1,100 \Omega\)

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