An electrical circuit is to run together with 4 other circuits in trunking. What is the correction factor for grouping \( (\mathrm{Cg}) \) to apply to calculate the minimum current carrying capacity? 0.77 0.75 0.6 0.65

To determine the correction factor for grouping \( (\mathrm{Cg}) \) for an electrical circuit running together with 4 other circuits, we need to refer to standard tables or guidelines that provide these factors based on the number of circuits grouped together. In this case, since there are 5 circuits in total (1 circuit + 4 other circuits), we can look for the correction factor corresponding to 5 circuits. Typically, the correction factors for grouping are as follows: - For 1 circuit: \( \mathrm{Cg} = 1.0 \) - For 2 circuits: \( \mathrm{Cg} = 0.9 \) - For 3 circuits: \( \mathrm{Cg} = 0.8 \) - For 4 circuits: \( \mathrm{Cg} = 0.75 \) - For 5 circuits: \( \mathrm{Cg} = 0.6 \) Based on this information, the correction factor for grouping \( (\mathrm{Cg}) \) when there are 5 circuits is \( 0.6 \). Thus, the answer is: \[ \mathrm{Cg} = 0.6 \]