For the questions on this page, an ideal transformer is connected as shown below. Assume Vs...
An ideal transformer is connected as shown below. If Vs = 83 V, N1 = 7, N2 = 2, and R = 294 , what is the magnitude of the resistor voltage drop VR (in V)? Vs N:N Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% Submit How much current does the source supply (IA, in A)? Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% Submit An ideal transformer is connected as shown below. The circuit parameters are...
An ideal transformer is connected as shown below. If Vs = 76 VRMS, R1 = 5370, and R2 = 72, what should n be for maximum power transfer? (Note that n may not be an integer.) R1 M 1:n + Vs llel R2 Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% Submit Assume the transformer turns ratio n is the correct value from the previous problem. What is the magnitude (in VRMS) of the voltage drop across R2? Points...
For the questions on this page, assume that an ideal transformer is connected as part of a larger circuit with a source on one side and a load on the other. (Note that only the transformer is shown below.) Assume VA = 127 V, 1A = 5 A, and n = 4. TA 11 1:n 12 Тв + + + V2 VB What is the magnitude of VB (in V)? Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% What...
For the questions on this page, a linear transformer is connected as shown below. Note that nothing is connected to the L2 side of the transformer. Assume l = 1.1/0° A, ZL1 = 316 0, ZL2 = 1900, and ZM = j27 0. M + + Is V Li L2 V2 Hint: When working with coupled inductors, start with the current through one inductor and mark its self-induced voltage and all mutually-induced voltages in any other inductors it is coupled...
For the questions on this page, consider a linear transformer that is connected as shown below. Assume 11 = 1.7/0° A, 12 = 2.7/0° A, ZL1 =j350, ZL2 = 1940, and ZM = 1280 + + 11 V1 Li L₂ V₂ 12 Enter the magnitude of V1 (in V). Points possible: 3 Allowed attempts: 3 Retry penalty: 33.333% Submit Enter the magnitude of V2 (in V).
R1 + VC- 35u(-t) 3u(t) Assume R1 = 20, R2 = 30, and C = 0.33F. What is the steady-state value of VC (in V) for t<0s? Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% Find the Thevenin equivalent of the circuit about the capacitor fort > 0. Assume the Thevenin equivalent voltage is defined so its negative terminal would be connected to the negative terminal of VC- What is RTH (in )? Points possible: 1 Allowed attempts: 3...
An ideal transformer with 5 turns on the primary and 10 turns on the secondary is shown in the figure. A sinusoidal voltage source having V(t) = 10 sin(100t) volts is connected across the primary and a 1 Ω resistor is connected across the secondary. What is the maximum value of the current in the primary circuit (not the secondary)? (answer is 40 amps)
A 600 VA, 60 Hz, 220/12 Vrms transformer is connected as an autotransformer. Assuming the transformer is ideal, determine a) the output voltage, b) the maximum V-A load rating possible, c) and the maximum input current, d) Determine the input current if a 50 Ohm resistor is connected on the output with 220 V applied to the primary.
An ideal transformer has 4500. turns in its primary (input) and 14500. turns in its secondary (output). 10.0-V ac is connected to the primary (input). a) What is the voltage on the secondary (output)? b) What is the secondary (output) current if an 8.00-Ω resistor is connected to the secondary (output)? c) What is the power supplied to the primary (input)?
An ideal transformer has 4500. turns in its primary (input) and 14500. turns in its secondary (output). 10.0-V ac is connected to the primary (input). a) What is the voltage on the secondary (output)? b) What is the secondary (output) current if an 8.00-Ω resistor is connected to the secondary (output)? c) What is the power supplied to the primary (input)?