What are the electric field strength and the electric potential at point QQQ?
Electric field strength: E5\frac{E}{5}5E, Electric potential: V25\frac{V}{25}25V
Electric field strength: E25\frac{E}{25}25E, Electric potential: V5\frac{V}{5}5V
Electric field strength: E16\frac{E}{16}16E, Electric potential: V4\frac{V}{4}4V
Electric field strength: E25\frac{E}{25}25E, Electric potential: V25\frac{V}{25}25V