For the Wien bridge shown in figure 1:9, R₂ = R3 = 30 kQ, R₁ = 1 kQ and C₂ = C3 = 1nF. Determine, the value of resistance R₁, and the frequency of the bridge when bridge is balanced. Figure 1: 9
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- Problem 4: A current of I = 2.3 A passes through the circuit shown, where R = 95 Q. I 3R 5R ww ww 2R 6R 2R 7R ww ww 10R 5R Part (a) In terms of R, I, and numeric values, write an expression for the voltage of the source, V. Expression : V = Select from the variables below to write your expression. Note that all variables may not be required. a, B, 0, a, d, g, h, I, j, k, m, P, R, S, t Part (b) What is the voltage, Vin volts? Numeric : A numeric value is expected and not an expression. V =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 BWhat is the voltage drop across R in the circuit below if the shown resistances have the following values: R1=10 N R2=10 N R3=10 N and the voltage provided by the voltage source is 13 volts. R1 R2 R3 adap fo V
- What is the voltage between points a andb (AVab = Vb-Va) if R1 = 4.00 Q, R2 and R3 are unknown, R4=8.00 Q and R5=D4.00 Q, the equivalent resistance of the circuit is 7.34 2, and ɛ = 7.00 V. Pay %3D attention to the sign!orts e-Services Academic Departm EIC CIMS R2 R1 R3 R4 ww w on Rs R6 In the above circuit, R1 = 100, R2 = 202, R3 = 150, R4 = 5O, R5 = 300 and R6 = 400. The battery voltage is 9V. 1. The equivalent resistance of the circuit is 2. The source current is A 3. The voltage drop across R5 is 4. The current through R2 is AFor the circuit below, a) Show that the unknown resistance Rx is given by Rx A R3 ww ww Ri B Rx ww Switch ww R₂, D HE R2. R₁ SYRUO R3 where R₁, R₂ and R3 are all accurately known. b) A Wheatstone bridge is balanced when R₁ = 6302, R₂ = 97202 and R3 = 42.62. What is the value of the resistance in the fourth arm?
- A circuit made up of 6 resistors is shown in the figure, with resistances R1 =11 Q, R2 = 45 N, R3 = 45 Q, R4 = 52 Q, R5 = 89 N, and R6= 38 Q. The total current going through the circuit is I= 3.5 A. R, RA a R R2 R. b 1. Calculate the value of AV, in volts.In the circuit shown in figure 1, epsilon is equal to 41.0 V, R1= 4 ohms, R2= 6 ohms, and R3= 3 ohms. (A) what is the potential difference Vab between points a and b when the switch S is open? (B) for the 4 ohm resistor, calculate the current through the resistor with S open. (C) for the 6 ohm resistor, calculate the current through the resistor with S open. (D) for the 3 ohm resistor calculate the current through the resistor with S open. (E) what is the potential difference Vab between points a and b when the switch S is closed? (F) for the 4 ohm resistor calculate the current through the resistor with S closed. (G) for the 6 ohm resistor calculate the current through the resistor with S closed (H) for the 3 ohm resistor calculate the current through the resistor with S closed. (I) for each resistor, does the current increase or decrease when S is closed?Write the node equation for the circuit in the figure. If I, = 4 A, I4 = 7 A, and I3 = 5 A, what is the value of the outward-going current I,? 4
- In the circuit shown below E = 75.0 V, R5 = 4.0o n, R3 = 2.00 n, R2 = 2.20 n, Iş = 8.40 A, I4 = 5.50 A, and I = 11.0 A. Find the current through Rz and R3, and the values of the resistors R, and Ra. Iz = I3 = A R1 = R. = R4 ww Is wwIn the given circuit below, R₁ = R₂ R3 = R4 = 102. (a) What is the equivalent resistance, Req of the series-parallel combination? (b) If the current in Resistance R₂ is 0.5A, what is V of the ideal battery? R₁ w R R₂ R₂A circuit made up of 6 resistors is shown in the figure, with resistances R1 = 11 N, R2 = 65 Q, R3 = 38 Q, R4 = 69 N, R5 = 85 Q, and R6= 45 Q. The total current going through the circuit is I= 18 A. R, R4 a R3 R R, Re |Calculate the value of AV, in volts.