Electromagnetic force is a vector. _____ True ____ False Capacitors discharge faster than batteries. _____ True ____ False Capacitance is proportional to charge stored. _____ True ____ False Capacitors in parallel are additive. _____ True ____ False Resistors in parallel are additive. _____ True ____ False

I1 = 9 A, I2 = 2 A, I3 = 13 A The total current I in this circuit in Amps is: ______ I1 = 9 A, I2 = 2 A, I3 = 13 A If V = 100 V, find the voltage drop across R1 in V. ______ I1 = 9 A, I2 = 2 A, I3 = 13 A If V = 100 V, find the voltage drop across R2 in V. ______ I1 = 9 A, I2 = 2 A, I3 = 13 A If V = 100 V, find the voltage drop across R3 in V. ______

A 1 uF capacitor is connected in series with a 2 uF capacitor and an open switch. Initially, the voltage across the open switch is 12 V and the voltages across the two capacitors are equal. a) b) Draw this circuit, marking on your diagram values of voltage V, charge Q and stored energy E in appropriate places. The switch is now closed. A current will flow, and excess energy will be dissipated in heat in the wires. Make a second diagram showing the final values of the voltages V, charges Q and stored energies, and state the amount of energy dissipated. E

The resistance R1 = 10 OHM and R2 = 25 OHM are one after another (in seri) in a circuit. What is the total resistance of R1 and R2?

Cu, Fe, Ti and S.   Cu  _________________ Ti   ______________________   Fe  _________________    S    ______________________     Which of the above are paramagnetic? Which are diamagnetic?

Circuit Problem: Express each labelled voltage and current (e.g., vx, ix) in terms of the resistances and source currents and voltages (e.g., R0).