(Solved): please show the LTSPICE command to simulate the circuit and how to set cursors ...

please show the LTSPICE command to simulate the circuit and how to set cursors

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a) First, you'll do some analysis: consider the RC circuit in Fig. 2 and, disregarding the resistor \( R_{C} \) because \( R_{C} \ll R \), find the time constant of the \( \mathrm{RC} \) circuit. \( \tau= \) \( \mathrm{s} \). b) Then, you will simulate this circuit in LTspice, assuming there is no initial charge on the capacitor and that \( v_{\text {in }}(t) \) is a \( 2 \mathrm{~V} \) positive step function (i.e., it is \( 0 \mathrm{~V} \) for all \( t<0 \) and \( 2 \mathrm{~V} \) for all \( t \geq 0 \). Plot the capacitor voltage \( v_{C}(t) \) and current \( i_{C}(t) \) on your screen then, using cursors, find the \( 10 \%-90 \% \) rise time of the circuit.