Table 2: The loop's parameters (from Bray et al. 1991) and the bootstrap current calculating results.
Parameter Cool loop Hot loop Flare loop*

$R,L({\rm m})$		 $1.0\times {10^{7}}$ $3.0\times{10^{7}}$ $7.0\times{10^{6}}$
$a_{0},({\rm m})$ $1.0\times {10^{6}}$ $5.0\times{10^{6}}$ $2.8\times{10^{6}}$
$d,({\rm m})$ $7.85\times {10^{7}}$ $4.0\times {10^{8}}$ $1.0\times {10^{7}}$
$T_{\rm e},({\rm eV})$ 10.0 300.0 900.0
$B_{\varphi0},({\rm T})$ 0.1 0.1 0.1
$n_{\rm e},({\rm m}^{-3})$ $1.0\times{10^{16}}$ $2.0\times{10^{15}}$ $1.3\times{10^{15}}$
g $1.2\times {10^{-5}}$ $1.8\times {10^{-2}}$ 1.05
$I,({\rm A})$ $4.0\times{10^{10}}$ $1.0\times{10^{11}}$ $1.0\times{10^{11}}$
$I_{{\rm bs}},({\rm A})$ - - $4.46\times{10^{10}}$
$f_{{\rm bs}},($%) - - 44.6

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