45 Ω 17Ω +94 V (a) Determine the voltage, v, when R-23 Ω. V. (b) Determine...
For the circuit below, determine,
a. The equivalent resistance.
b. The total current in the circuit.
c. The total power.
d. The current and voltage for R5 and R7
.
Take, V = 48 V, R1 = 25 Ω, R5 = 45 Ω, R6 = 40 Ω, and R7 = 38
Ω.
2. 10] For the circuit below, determine, a. The equivalent resistance b. The total current in the circuit. c. The total power d. The current and voltage for...
An R-C circuit is driven by an alternating voltage of amplitude 110 V and frequency ω. Define Vout to be the amplitude of the voltage across the capacitor. The resistance of the resistor is 1000 Ω, and the capacitance of the capacitor is 1.00 μF . Part A What is Vout if ω=10radians/s? Express your answer numerically, in Volts. V Part B What is Vout if ω=105radians/s? Express your answer numerically, in volts.
A battery with an emf of 11.7 V has a terminal voltage of 11.1 V when the current is 3.36 A. (a) Calculate the battery's internal resistance r (in ohms). Ω (b) Find the load resistance R (in ohms). Ω
Three resistors, 15.0 Ω, 23.0 Ω and R are connected across a 6.00 V battery. The current in the circuit is 0.100 A. (a) What is the resistance of the unknown resistor? (b) What is the voltage across each resistor? (c) What is the power used by each resistor?
3. Determine the resistance R when I = 1.5 A. 30v - 20 Ω 10 Ω
When voltmeter is connected in series with resistance R1, it shows voltage U1 = 198 V, but turned on in series with R2 = R * R1, voltmeter shows U2 = 180 V. Find R1 and voltage in the network if voltmeter inner resistance r = 900 Ω.
A 25 Ω load is connected to the terminals of a 400 V terminal voltage parallel excited DC generator. The resistance of the field circuit is 200 Ω, the resistance of the armature is 0,4 Ω, the efficiency is 82%, the speed is 1000 r/min. Draw the equivalent circuit of the generator. Calculate the induced emf, the torque and the magnetic losses if the mechanical losses is 200 W.
A bulb is designed to work with Peak voltage 45 V and Period 28 ms . It has resistance 120 Ω and is in series with a 5.1 kΩ resistor and an AC power supply. Complete the following: a) Sketch and label the circuit diagram b) The frequency of the power supply c) The peak current through the bulb d) The V_RMS of the power supply
A battery has an emf of 15.0 V. The terminal voltage of the battery is 12.2 V when it is delivering 14.0 W of power to an external load resistor R. (a) What is the value of R? _____ Ω (b) What is the internal resistance of the battery? ______ Ω
A 230 V shunt direct-current machine on no-load has a speed of 900 rpm and a supply current of 2.5 A. The machine parameters are: • Field resistance: 230 Ω • Armature resistance: 0.3 Ω • Voltage drop/brush: 1.0 V (current independent) a) Calculate the electromagnetic torque, speed, the output power and the overall efficiency when the supply current is 35 A, assuming that the friction and wind-age torque is constant. (16 points) b) The machine operates now as generator...