(ii) Calculate the voltage (in V) across the 5.2 Ω resisto
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A 1 Ω resistor and a 4 Ω resistor are connected in parallel. The combination is connected in series with a 5.2 Ω resistor and a 24 V supply.
(ii) Calculate the voltage (in V) across the 5.2 Ω resistor
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- A 15.0-Ω resistor and a 50.0-Ω resistor in parallel are connected to a 120-V dc source. (a) What is (are) the current(s) through the resistors? current through the 15.0-Ω resistor: A current through the 50.0-Ω resistor: A (b) What is the voltage drop across each resistor? voltage drop across the 15.0-Ω resistor: V voltage drop across the 50.0-Ω resistor: V4. You can easily find the time constant if you are given a graph of voltage across a discharging capacitor as a function of time. When t = Tc = RC, the voltage across the capacitor is AV (t = Tc) = AV, e¹≈ 0.37 AV Therefore the time constant is just how long it takes for AV (t) to reach 37% of its initial value. The graph shows the voltage across a discharging 0.2 μF capacitor as a function of time. Use the following steps to determine the resistance. a. What is 37% of the initial voltage? 21 b. How long does it take (after discharge starts) for the voltage to reach 37% of the initial voltage? This time is equal to the time constant. c. Use your time constant from (b) to determine the resistance. AV (Volts) 2 1.5 0.5 %40 80 120 160 time (milli-sec)In the circuit diagram below: 1) R1 = 86 Ω, R2 = 70 Ω, R3 = 75.0 Ω, R4 = 150.0 Ω and R5 = 87 Ω 2) V1 = 10.0 V, and V2 = 5.00 V Determine (in Amperes) the current, I1, which passes through the battery V1.
- Determine the voltage across the 5.0- resistor in the drawing. Number Units 5.0 22 10.0 V 10.0 Ω 10.0 22 -2.0 V 15.0 VA 15.0-Ω resistor and a 40.0-Ω resistor in parallel are connected to a 120-V dc source. (a) What is (are) the current(s) through the resistors? current through the 15.0-Ω resistor: A current through the 40.0-Ω resistor: A (b) What is the voltage drop across each resistor? voltage drop across the 15.0-Ω resistor: V voltage drop across the 40.0-Ω resistor: V#2 - For the previous problem, if the motor turns on when the voltage across it is 80% of the battery voltage, what is the ratio of the capacitor's charging time to its discharge time? 7.2 CORRECT R Vc Vo Motor 1.6 PC C 0.22 PC