A transistor is used as a switch and the waveforms are shown below. The parameters are given as follows: $V_{CC}=100V,V_{BE(sat)}=4V,I_{BS}=10A,V_{CE(sat)}=2V,I_{CS}=50A,t_d=0\mathrm{.}4s,t_r=1\mathrm{.}6s,ts=3s,t_f=4s$ and $f_s=10KHz,k=40\%$ and $I_{\text{C}\text{E}\text{O}}=2mA.$

The conduction time $t_n$ and the blocking time $t_0$ are equal to:

$t_n=,|s$ and $t_0||=$

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