Web7 What is the potential difference VB – VA when the I= 1.5 A in the circuit segment below? a. +22 V b. –22 V c. –38 V d. +38 V e. +2.0 V Without the EMFs, the potential difference is -30V. Two EMFs add a positive (20V-12V=+8V) shift. Finally, the potential difference VB – VA = -30V+8V=-22V. 8. What is the equivalent resistance between points a and b when … WebJan 13, 2024 · Here, we note the equivalent resistance as Req. Figure 6.3.5: (a) The original circuit of four resistors. (b) Step 1: The resistors R3 and R4 are in series and the equivalent resistance is R34 = 10Ω (c) Step 2: The reduced circuit shows resistors R2 and R34 are in parallel, with an equivalent resistance of R234 = 5Ω.
CHEM1901/3 Answers to Problem Sheet 10 (a) Al(s) Al (aq)
WebDec 26, 2024 · The correct answer is "24 V". Explanation: The given values are: Current, I = 0.50 A. Resistance, R = 12 W. As we know, ⇒ . On substituting the given values, we get. … WebAboutTranscript. The rate law for a chemical reaction can be determined using the method of initial rates, which involves measuring the initial reaction rate at several different initial reactant concentrations. In this video, we'll use initial rates data to determine the rate law, overall order, and rate constant for the reaction between ... philippines anthem 1hr
Discussion Chapter 27: Circuits - University of …
WebSep 19, 2024 · The Nernst Equation ( 20.6.2) can be used to determine the value of E cell, and thus the direction of spontaneous reaction, for any redox reaction under any conditions. Equation 20.6.5 allows us to calculate the potential associated with any electrochemical cell at 298 K for any combination of reactant and product concentrations under any ... WebThe resistance R is given by R=ρL/A (Equation 20.3), where L is the length and A is the cross-sectional area of the wire. With twice the length and one-half the radius (one-fourth the cross-sectional area), the second wire has L/A=2/ (1/4)=8 times the resistance as the first wire. A cylindrical wire has a length of 2.80 m and a radius of 1.03 mm. WebIn the figure, ε = 12.0 V, the time constant is 500µs, and I max = 200 mA. What is L? A. 500 µH B. 2.75 mH C. 30.0 mH D. 1.20 H Answer POP5 23.48 How much energy is stored in a superconducting solenoid of diameter 6.20 cm and length 26.0 cm when it produces a 4.50 T magnetic field? A. 8.06 MJ B. 522 kJ C. 6.32 kJ D. 1.77 J Answer philippines anthem midi