In eq.( ), R is the end-to-end distance of the chain [shown schematically in Fig. ] and Req is the end-to-end distance in the absence of any electric field. 𝑟 "" shows the percentage of change in the end-to-end distance of the chain w.r.t the equilibrium position. Fig. (e) shows that 𝑟 "" decreases (i.e., increases in the negative magnitude) with the increasing electric field. The decrease in ree represents an increase in the percentage of bending-driven chain collapse with increasing electric field; this finding is also supported by Fig. .