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- (a) What is the terminal voltage of a large 1.54-V carbon-zinc dry cell used in a physics lab to supply 2.00 A to a circuit if the cell’s internal resistance is 0.100 ? (b) How much electrical power does the cell produce? (c) What power goes to its load?A circuit contains a D-cell battery, a switch, a 20- resistor, and three 20-mF capacitors. The capacitors are connected in parallel, and the parallel connection of capacitors are connected in series with the switch, the resistor and the battery, (a) What is die equivalent capacitance of the circuit? (b) What is the KC time constant? (c) How long before the current decreases to 50% of the initial value once the switch is closed?Consider the circuit shown in Figure P28.21 on page 860. (a) Find the voltage across the 3.00-0 resistor, (b) Find the current in the 3.00-12 resistor.
- Determine what circuit is shown V₁ E 25V A. Parallel B. Series C. Series-Parallel D. None R₂ 2002 R₁ 380 V₂ V₂ V₁₂ =V₂ E=V₁ + V₂ I= 1₂ + 1₂ R₂ 3052a. What is the equivalent resistance for this circuit? R1=10 2 R3=4 2 R2=1 2 12 V R4=1 2 b. What total current in the circuit? с. What is the current through R1? d. What is the current through R2? е. What is the current through R3? f. What is the current through R4? g. What is the voltage drop across R1? h. What is the voltage drop across R2?What is the total power delivered by the 16-volt battery in the circuit below? V1 = 16 volts, V2 = 20 volts, R1 = 7.0 Ω, R2 = 3.0 Ω, and R3 = 2.0 Ω, a. 24 watts b. 36 watts c. 48 watts d. 60 watts e. 12 watts
- 1. Figure 1 shows a multi-loop circuit. Determine I1, l2 and l3. 2.5 Q 12 V 1.8 Q I: 2.6 Q 10 V 31Find the following: a. Equivalent resistance of the circuit b. Total Current c. Voltage on the 250-2 resistor d. Voltage on the 200-2 resistor e. Current thru the 250-2 resistor. 100 Ω R R2 3250 2 24 V = 350 Ω R, R43 200 2 Activate Windows Go to Settings to activate WinM 1 Ω 11 V 3 W Ω 16 V a. Write Kirchhoff's junction rule for all junctions in the circuit. b. Write Kirchhoff's loop rule for all the loops in the circuit. c. Solve the circuit by finding the values of all the currents. 2 Ω mi M In this assignment you will be following the problem solving strategy for Kirchhoff Rules. 1. Reproduce, as neatly as possible, on paper, the circuit shown above. Do not make the circuit too small as you will have to add things to it later. 2. Label all relevant points in this circuit. For your benefit these points are marked with dots in the Figure above and they include: circuits junctions (i.e. places where 3/more wires connect), wire "corners" (i.e. places where a single wire is bent), and locations between two components on a single straight wire. These will help identify loops as well as making it easier to keep track of potential differences. Use lower case letters (a, b, c, ...) for this task. 3. For each junction draw and label the currents coming in…
- 7. If one of the resistors in a parallel circuit is removed, the total resistance A. doubles B. increases C. decreases D. remains the same 8. Three 10k resistors are connected in series. A 20k resistor is connected in parallel across one of the 10k resistors. The voltage source is 24 V. The total current in the circuit is A. 900 µ A B. 9 mA C. 90 mA D. 800 μΑ _9. The algebraic sum of voltages around any closed path in a network is equal to A. infinity 10. Relation between currents according to KCL is В. 1 C. O D. negative polarity A. I;= l2 = l3 = 14 =ls B. I,+ la + l3 =ls+ l2 C. I- Is = 12 - 13 - l4 D. I,+ Is = 12 + l3 + l43. Four capacitors are connected to an EMF as shown with C₂ = 20 μF, C₂ = 4 μF, C₂ = 3 μF, and C₁ = 4 μF. The voltage across C₂ is 20 V. a. What is the equivalent capacitance of the circuit? Redraw circuit at each step. b. What is the EMF? You may (but do not need to) make a table similar to the first problem to help organize your calculation. B d. What is the total energy stored in the capacitors? Do it the easy way! to C₂ c. What would a voltmeter read if the COM lead is at A and the V lead is at B? In other words, what is VB - V₁? C43. Four capacitors are connected to an EMF as shown with C₂ = 20 μF, C₂ = 4 μF, C₂ = 3 μF, and C₁ = 4 μF. The voltage across C₂ is 20 V. a. What is the equivalent capacitance of the circuit? Redraw circuit at each step. b. What is the EMF? You may (but do not need to) make a table similar to the first problem to help organize your calculation. W B C₁ C₂ C₂ CA
