More Practice Circuits

The questions below are due on Monday February 24, 2025; 10:00:00 PM.

You are not logged in.
Please Log In for full access to the web site.
Note that this link will take you to an external site (https://shimmer.mit.edu) to authenticate, and then you will be redirected back to this page.

Circuit 1

Consider the following circuit, where 0 \leq R_o < \infty.

Answer the following questoins about this circuit. Consider each situation below independently from the others.

If R_o = 3\Omega, what is i_o (in Amps)?

i_o =~

If v_o = 30{\rm V}, what is R_o (in Ohms)? Enter None if no such R_o exists.

R_o =~

If i_o = 6{\rm A}, what is R_o (in Ohms)? Enter None if no such R_o exists.

R_o =~

If v_o = 75{\rm V}, what is R_o (in Ohms)? Enter None if no such R_o exists.

R_o =~

Circuit 2

Consider the following circuit where the resistance R is in the range 0 \leq R < \infty.

Answer the following questions about this circuit:

If R = 0\Omega, what is i_1 (in Amps)?

i_1 =~

Determine the potential e_1 (in Volts, relative to the indicated reference node) when R=1\Omega.

e_1 =~

Circuit 3

Find V_1 and V_2 so that i_a = 7A and i_b=3A.

Enter V_1 (in Volts):

Enter V_2 (in Volts):

Circuit 4

Determine an expression for i_4 in the following circuit.

Enter an expression (in Python) for i_4 in terms of case-sensitive variables I_1, I_2, R_1, R_2, and R_3.

i_4 =~