LR Circuits (DC) External Resistor = 27ohms , Tolerance (%)=5 I need help on question #3 on how to calculate the uncertainty And question #4 Thanks in advanceIf you need any values that I didn't add here let me know

3. What time constant do you measure for this circuit, and what is the uncertainty in the time constant? BIU E 191 ! HEE 4 slope= 1.58 , R=270 Time constant from this graph : 1 T= slope = 1.58 = 0.6329113924 = 0.6329 T= T = B = 0.6329s Score: 0/5 4. In this experiment, the inductor's coil has it's own resistance that we cannot disregard. Describe a procedure to determine the value of the coil resistance. What coil resistance do you measure? Hint: In the steady state, di/dt is zero and the inductor can be modeled as a simple wire. What does the circuit look like once steady state conditions prevail? BIU E