The circuit shown below consists of resistors, capacitors, a battery, and a single pole double throw switch (SPDT). When the switch is in position A, the battery is part of the circuit. When the switch is in position B, the battery is replaced with a wire. R2 = 10.0 MQ C = 70.0 µF HE 7 50 1 0

Find the equivalent resistance Rab for this circuit

C -Q (A) 0.25 uF 10V 2uF 4uF (B) Figure 3: 3. In Figure 3 the capacitors were discharged before being connected to the battery. (a) In Figure 3A the net positive charge delivered by the battery is +Q1 to C1 and a net negative charge -[Q2 + Q3] is delivered to C2 and C3 [-Q2 is delivered to C2 and -Q3 to C3]. From conservation of charge[net charge is zero since both the battery and the capacitors have a zero net excess charge] and path independence of the electric field[sum of voltages must add up to zero for a closed path or conservation of energy]: Q1 + (-Q2) + (-Q3) = 0 conservation of charge +%-왕-용 (True, False) = 0 conservation of energy +V - = 0 conservation of energy (b) If (a) is true then the charge Q1, Q2 and Q3 follow from above three equations as C1(C2 + C3) V Q2 = Ci + C2 + C3 C1 C3 Ci + C2 + C3 Q1 = Q3 = V, (True, False) C1 + C2 + C3 (c) In Figure 3A the net positive charge delivered by the battery is Qtot = Q1 = C1(C2+C3) v which implies an equivalent capacitance of Qtot…

Calculate the equivalent resistances Rin of the following circuits. (The resistance value of the diodes in the conduction will be 0, the resistance value of the diodes in the insulation will be taken as infinity. R1=10ohm