An Infinite Plane of Charge With $\sigma = + 55.5 \frac { p C } { \mathrm {~m} ^ { 2 } }$

question 141

Multiple Choice

An infinite plane of charge with $\sigma = + 55.5 \frac { p C } { \mathrm {~m} ^ { 2 } }$ is tilted at a 45 $\degree$ angle to the vertical direction as shown below.The potential difference,V_B -V_A,in volts,between points A and B,a 4.50 m distance apart,is

• A)-7.06.
• B)-9.98.
• C)-14.11.
• D)+7.06.
• E)+9.98.

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