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Charges \( Q_{1} \) and \( Q_{2} \) lie inside and outside, respectively, of a closed surface \( S \). Let \( E \) be the field at any point on \( S \) and \( \phi \) be the flux of \( E \) over \( S \).
(1) If \( Q_{1} \) changes, both \( E \) and \( \phi \) will change.
(2) If \( Q_{2} \) changes, \( E \) will change but \( \phi \) will not change.
(3) If \( Q_{1}=0 \) and \( Q_{2} \neq 0 \), then \( E \neq 0 \) but \( \phi=0 \).
(4) If \( Q_{1} \neq 0 \) and \( Q_{2}=0 \), then \( E=0 \) but \( \phi \neq 0 \).
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