JEE Mains · Physics · STD 12 - 1. Electric charges and fields
Consider two infinitely large plane parallel conducting plates as shown below. The plates are uniformly charged with a surface charge density \(+\sigma\) and \(-2 \sigma\). The force experienced by a point charge +q placed at the mid point between two plates will be :
- A \(\frac{\sigma q}{4 \epsilon_0}\)
- B \(\frac{3 \sigma q}{2 \epsilon_0}\)
- C \(\frac{3 \sigma q}{4 \in_0}\)
- D \(\frac{\sigma q}{2 \epsilon_0}\)
Answer & Solution
Correct Answer
(B) \(\frac{3 \sigma q}{2 \epsilon_0}\)
Step-by-step Solution
Detailed explanation
Final charge distribution will be \(\therefore \mathrm{F}_{\mathrm{net}}=\frac{3 \sigma}{2 \epsilon_0} \mathrm{q}\)
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