Consider the circuits shown below: a V = 66 V battery is connected to R₁ = 40 2, R₂ = 35 02, R₂ = 50, and R4 = 10 2. For the left-side circuit, what is the potential difference between points a and b? R₂ R₂ R₁ ww a www.www b R4 R3 +| R₁ www The potential difference between the points b and a, V₁-Va = Units Select an answer a www.www b R₁ V of Units Select an answer For the right-side circuit, what is the magnitude of the current between points a and b? The current, lab =

In the circuit below the voltage of the battery is 40 V. C1 = 20.0μF, C₂ = 5.0 μF, C3 = 30.0 μF, C₁ = 30.0 uF. Find the equivalent capacitance in microfarad. Find the voltage for the capacitor C₂. HH HH 30% T TE 1 pts

An electric device draws 6.10 AA at 240 VV. If the voltage drops by 25 %, what will be current, assuming nothing else changes? Express your answer to two significant figures and include the appropriate units. I final= If the resistance of the device were reduced by 25 %, what current would be drawn at 240 VV? Express your answer to two significant figures and include the appropriate units. I final=

In the circuit shown, the values of the resistors are R1=10Ω, R2=20Ω, R3=30Ω and R4=40Ω. The current through R3is 0.200 A. Find the voltage supplied by the battery, Vbat.

Consider the Circuit shown in the figure below. (Let R₁ = 7:00M, R₂ = 7:00; and E= 7 uov) 10.0 R2 wym 5.000 LM 2.00n R₁ mm E $i + + a) Find the Voltage across R₁ (answer in V) 6 Find the current in R1 (answer in A)

Three resistors of resistances R1 = 14.8 Ω, R2 = 70.3 Ω, and R3 = 39.7 Ω are connected in parallel. What is the equivalent resistance (Req,p)?

Due to a weak connection, there is a break in the circuit (shown below) between points a and b. If R₁ = 4.43 , R₂ = 1.89 , and R3 = 14.7, and the two batteries E₁ and ₂ have voltages of 22.0 V and 6.50 V respectively, find the potential difference Vab. Be sure to include the sign of the potential difference. Vab = Vb - Va What is the current flowing through R3? Did you assign plus and minus signs for each resistor and battery based on the high and low potential ends? V E₁ = 0.7123 R3 R₂ R₁ b a E₂

In the circuit shown below, Vs = 60 V, R1 = 7 Q, R2 =10 V, R3 = 6 Q and R4 = 6 Q. The Thevenin equivalent of this circuit consists of a voltage source Vth and series resistance RTh. FInd Vth and Rth and hence determine the current that will flow through a 50 Q resistor connected between points A and B. Give your answer in Amps to three decimal places. RTh I R3 R2 TA Vs VTh B Next > < Previous R4 R1 That -A B

A cylindrical conductor has resistance of R0 = 120 Ω. It has length L, radius of the cross section r, and resistivity ρ.    Part (a)  Express the resistance in terms of L, r, ρ.  R0 =   P L/π r2  This equation is incorrect      Part (b)  If the resistivity increases by a factor of 3, what would the value of the new resistance be, in ohms?  Rρ =360   Part (c)  If the resistivity was restored to its original value and instead the length of the conductor decreased by a factor of 3, what would the value of the new resistance be, in ohms?  Rl =    Part (d)  If the resistivity and length of the conductor were at their original values and the radius of the conductor increased by a factor of 6, what would be the value of the new resistance, in ohms?  Rr =

In the schematic below two batteries are in series and drive current through the circuit as shown. The first resistor has a voltage drop AV = 2.8 V, the middle resistor has a resistance of R = 154 Q, and the last resistor has a voltage drop AV2 = 1.6 V. Given these parameters, what is the magnitude of current flowing through the circuit in milli-amps (mA)? Giver your answer to 3 significant figures. %3D AV, 3.0 V 4.5 V ww