The phase voltage of a star-connected, three-phase circuit is 200 V. The line voltage will be-

Correct option is C

​$$\text{In a star-connected (Y-connected) three-phase circuit, the line voltage } (V_L) \text{ is related to the} \\\text{phase voltage } (V_{ph}) \text{ by the formula:}\\[1.5ex]V_L = \sqrt{3} \times V_{ph}\\[2ex]\text{Given that the phase voltage } V_{ph} = 200\, \text{V, the line voltage can be calculated as:}\\[1.5ex]V_L = \sqrt{3} \times 200\, \text{V} = 1.732 \times 200\, \text{V} = 346.4\, \text{V}\\[1.5ex]\text{Thus, the line voltage is } 346.4\, \text{V}.$$​​