MHT CET · Physics · Electrostatics
If the electric flux entering and leaving an enclosed surface are \(\phi_1\) and \(\phi_2\) respectively, the electric charge inside the surface will be
- A \(\frac{\phi_2-\phi_1}{\varepsilon_0}\)
- B \(\frac{\phi_1+\phi_2}{\varepsilon_0}\)
- C \(\varepsilon_0\left(\phi_1-\phi_2\right)\)
- D \(\varepsilon_0\left(\phi_2-\phi_1\right)\)
Answer & Solution
Correct Answer
(D) \(\varepsilon_0\left(\phi_2-\phi_1\right)\)
Step-by-step Solution
Detailed explanation
Using Gauss's law, Net electric flux, \(\Delta \phi=\frac{q}{\varepsilon_0}\) \(q=\left(\phi_2-\phi_1\right) \varepsilon_0\)
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