In the circuit below, the currents through the three resistors are as indicated. Use the junction rule to write the equations representing the relationship between the currents at junction a. (Use the following as necessary: I₁, I2, and 15.) = 0 &₁ h E₂ 1₂ R₁ R₂ R3 www 14 www R4 13 b
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- A 1,00-?O voltmeter is placed in parallel with a 75.0kresistor in a circuit, (a) Draw a circuit diagram of the connection, (b) What is the resistance of the combination? If the voltage across the combination is kept the same as it was across the 75.0-kresistor alone, what is the percent increase in current? (d) If the current through the combination is kept the same as it was through the 75.0-kresistor alone, what is the percentage decrease in voltage? (e) Are the changes found in parts (c) and (d) significant? Discuss.Consider the circuit shown below. The terminal voltages of the batteries are shown, (a) Find the equivalent resistance of the circuit and the current out of the battery, (b) Find the current through each resistor, (c) Find the potential drop across each resistor, (d) Find the power dissipated by each resistor, (e) Find the total power supplied by the batteries.A resistor is dissipating 119milliwatts [mW] of power. The voltage across the resistor is 26 volts [V]. (a) What is the value of the resistance? Express your answer in units of ohms[Ω]using an appropriate SI prefix such that there are only one, two, or three digits shown to the left of the decimal. (b) What is the current through the resistor? Express your answer in units of amperes [A] using an appropriate SI prefix such that there are only one, two, or three digits shown to the left of the decimal.
- A resistor is dissipating 114 milliwatts [mW] of power. The voltage across the resistor is 13 volts [V]. (a) What is the value of the resistance? Express your answer in units of ohms [Ω] using an appropriate SI prefix such that there are only one, two, or three digits shown to the left of the decimal. (b) What is the current through the resistor? Express your answer in units of amperes [A] using an appropriate SI prefix such that there are only one, two, or three digits shown to the left of the decimal.Make a VIRP table and complete it by measuring the voltage across each resistor and the power supply and measuring the current through each resistor and the total current and the total power coming out the power supply. Set your power supply to 24 V. Provide evidence that your table information is reasonable. Write down your reasoning and show your calculations. Figure B R1 = 100 Ω R2 = 90 Ω R3 = 105 ΩIn the circuit shown in figure 1, all the resistors are rated a maximum power of 1.00 W. What is the maximum emf epsilon that the battery can have without burning up any of the resistors?
- Make a VIRP table and complete it by measuring the voltage across each resistor and the power supply and measuring the current through each resistor and the total current and the total power coming out the power supply. Set your power supply to 12 V. Provide evidence that your table information is reasonable. Write down your reasoning and show your calculations. Figure A R1 = 100 Ω R2 = 90 Ω R3 = 105 ΩIf two resistors with resistances R1 and R2 are connected in parallel, as in the figure, then the total resistance R, measured in Ohms (Ω), is given by: 1R=1R1+1R2 If R1 and R2 are increasing at rates of .3Ω/s and .2Ω/s, respectively, how fast is R increasing when R1=80Ω and R2=100Ω? ________________ Ω/s (Answer) Please show all steps.The resistors shown in the figure have the following values: R1= 80 ohms R2= 50 ohms R3= 130 ohms and R4= 200 ohms What is the equivalent resistance between points a and b? What is Req= the equivalent resistance between points band c? What is the equivalent resistance for the entire resistor arrangement (from a to c)? If a voltage difference deltaVac= 13volts is applied across the arrangement (from a to c), what is the total current flowing from a to c? What is the voltage difference between points a and b? What is the voltage difference between points b and c? How much current is flowing across resistor R3? How much current is flowing across resistor R4?
- A circuit consists of two 100-kΩ resistors in series with an ideal 12.0-V battery. (a) Calculate the potential drop across one of the resistors. (b) A voltmeter with internal resistance 10.0 MΩ is connected in parallel with one of the two resistors to measure the potential drop across the resistor. By what percentage will the voltmeter reading deviate from the value you determined in part (a)? (Hint: The difference is rather small, so it is helpful to solve algebraically first to avoid a rounding error.)Directions: Complete the table by providing the values for Vab, Vac, Vbd, and Vcd. Refer to Figures 3a and 3b. Note that an ideal voltmeter has infinite resistance while an ideal ammeter has zero resistance. You may need to compute for the current in the circuit to find the unknown voltages.In the circuit shown in figure 1, epsilon is equal to 41.0 V, R1= 4 ohms, R2= 6 ohms, and R3= 3 ohms. (A) what is the potential difference Vab between points a and b when the switch S is open? (B) for the 4 ohm resistor, calculate the current through the resistor with S open. (C) for the 6 ohm resistor, calculate the current through the resistor with S open. (D) for the 3 ohm resistor calculate the current through the resistor with S open. (E) what is the potential difference Vab between points a and b when the switch S is closed? (F) for the 4 ohm resistor calculate the current through the resistor with S closed. (G) for the 6 ohm resistor calculate the current through the resistor with S closed (H) for the 3 ohm resistor calculate the current through the resistor with S closed. (I) for each resistor, does the current increase or decrease when S is closed?