Just after the switch is closed:
• what is the potential difference across bulb A,across bulb B, across the capacitor C, and across the battery? Explain.
• rank the currents
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- Part A A triangular array of resistors is shown in the figure (Figure 1). What current will this array draw from a 40.0 V battery having negligible internal resistance if we connect it across (a) ab, (b) bc, (c) ac? V ΑΣφ ? I = A Submit Request Answer Figure 1 of 1 • Part B b ? I = A Submit Request Answer а ww 20.0 0 10.0 N ww 15.0 Narrow_forwardPhysics Questionarrow_forward12. Consider the circuit shown below. RA RB C The two resistors shown above are identical and the capacitor is uncharged when the switch is initially open. a) The switch is closed. Which of the following is true about cur- rent flowing through the resistors immediately after the switch is closed? • A. The current through RA is less than the current through Rg. • B. The current through RA is greater than the current through Rg. • C. The current through RA is equal to the current through RB. b) The switch stays closed for a long time. Which of the following is true about current flowing through the resistors after a very long time with the switch being closed? • A. The current through RA is less than the current through RB. • B. The current through RẠ is greater than the current through RB. • C. The current through RA is equal to the current through RB. c) The switch is then opened. Which of the following is true about current flowing through the resistors immediately after the switch is…arrow_forward
- During an action potential, Na+ ions move into the 2 cell at a rate of about 3 × 10¯7mol/m² . • S. Part A How much power must be produced by the "active Na+ pumping" system to produce this flow against a +30-mV potential difference? Assume that the axon is 80 cm long and 30 μm in diameter. Express your answer using two significant figures.arrow_forwardBattery R₁ R₂ R₁ In the circuit above, a 8 V battery is connected to the circuit where R₁ = 5S2, R₂ = 31, and R3 = 24 2. What is the current flowing through R3 in this circuit? • Do NOT include units • Round to 2 decimal points, include zeros if needed.arrow_forwardConstants During an action potential, Nat ions move into the cell at a rate of about 3 x 10-7mol/m? •S. Part A How much power must be produced by the "active Nat pumping" system to produce this flow against a +30-mV potential difference? Assume that the axon is 10 cm long and 30 µm in diameter. Express your answer using two significant figures. ? P = Warrow_forward
- Current• Define electric current, ampere, and drift velocity• Describe the direction of charge flow in conventional current.• Use drift velocity to calculate current and vice versa.arrow_forwardConsider the circuit shown in the figure (Figure 1). The values of the different components are as follows: • • Ebattery = emf = 9.0 Volts r (internal resistance of the battery) = 1.52 Figure R₁ = 5S R₂ = 152 R3 = 40 S2 I₁ switch R₁ + R₂ battery Q R₂ 13 Part A Use Kirchoff's rules to calculate 1₁, 12, and 13. Enter your answer as 3 values, separated by a comma (11, 12, 13) 11, 12, 13 = Submit 197| ΑΣΦ VO Provide Feedback Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining ? Aarrow_forwardResistors in Series and Parallel• Draw a circuit with resistors in parallel and in series.• Calculate the voltage drop of a current across a resistor using Ohm’s law.• Contrast the way total resistance is calculated for resistors in series and in parallel.• Explain why total resistance of a parallel circuit is less than the smallest resistance of any of the resistors in thatcircuit.• Calculate total resistance of a circuit that contains a mixture of resistors connected in series and in parallel.arrow_forward
- Select the correct value for each of the quantities listed below. A capacitor of capacitance C= 2.0 µF is initially charged with charge Qo = 6.0 µC. The %3D capacitor is then discharged by connecting it to a resistor of resistance R = 5.0 MN. V V. • The initial voltage of this capacitor is [Select ] At time t = 20 s: • the charge on the capacitor is Q = [Select ] µC, • the voltage across the capacitor is AV= [Select] Y V, • the current in the circuit is I = [ Select ] [ Select ] and the energy stored in the capacitor is U =arrow_forwardthen watt/volt = coulomb/second = ampere. A 1500-W heater is designed to be plugged into a 120-V outlet. Part B What is R, the resistance of the heater? Express your answer numerically in ohm using three significant figures. • View Available Hint(s) R = Ω Submitarrow_forwardIn your circuit toolbox, you only have a collection of resistors (R¡ = 100 2, R2 = 10 2, R3 = 60 2) and some switches that can be open or closed. Construct a circuit filling in all four boxes, such that the equivalent resistance between A and B is 15 Q. A• Answer Bank ww about us careers privacy policy terms of use contact us help 87°F Rain coming 林 近arrow_forward
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