An Ideal 100- $\mathrm { V }$ Dc Battery Is Applied Across a Series Combination of Four

question 138

Multiple Choice

An ideal 100- $\mathrm { V }$ dc battery is applied across a series combination of four resistors having resistances of $20 \Omega , 40 \Omega , 60 \Omega$ , and $80 \Omega$ . What is the potential difference across the $40 - \Omega$ resistor?

• A) \(60 \mathrm {~V}\)
• B) \(100 \mathrm {~V}\)
• C) \(40 \mathrm {~V}\)
• D) \(20 \mathrm {~V}\)
• E) \(80 \mathrm {~V}\)

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