light bulbs of 5 MN resistances driven by a high power battery source of 25 KV. Sketch the best possible design of the circuit to achieve your objective,
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Q: Indicate the direction with the sign of your answer.) I1 = A I2 = A I3 = A
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- For the circuit shown, find a) i1 b) v c) i2 d) The power supplied by the voltage source.Four resistors are connected to a battery with a terminal voltage of 12 V, as shown in the figure below. (Assume R, = 39.0 N and R, = 71.0 N.) R 50.0 N R2 20.0 N 12 V (a) How would you reduce the circuit to an equivalent single resistor connected to the battery? Use this procedure to find the equivalent resistance of the circuit. (b) Determine the power delivered by the battery.What is the electrical potential difference between point A and B in the electric circuit below? V = 24 V, R1 = 20 Ω, R2 = 32 Ω, R3 = 44 Ω.
- The resistance of each brake lightbulb on an automobile is 6.7 Ω. Use the fact that cars have 12-V electrical systems to compute the current that flows in each bulb if they are connected in series. (For simplicity, assume that the circuit is only composed of one brake lightbulb and the car battery.)Three 85.0-w, 135-V lightbulbs are connected across a Av = 135-V power source, as shown in the figure below. Find the total power delivered to the three bulbs and the potential difference across each. Assume the resistance of each bulb is constant (even though, in reality, the resistance increases markedly with current). R1 AV R2 R3 (a) Find the total power delivered to the three bulbs. (b) Find the potential difference across each bulb. AVR. V = AVR2 V VYour cell phone typically consumes about 410 mW of power when you text a friend. If the phone is operated using a lithium-ion battery with a voltage of 3.7 V, what is the current (in A) flowing through the cell-phone circuitry under these circumstances?
- The figure below shows five resistors and two batteries connected in a circuit. What are the currents I1, I2, and I3? (Consider the following values: R1 = 1.20 Ω, R2 = 2.16 Ω, R3 = 3.19 Ω, R4 = 4.18 Ω, R5 = 6.18 Ω. Due to the nature of this problem, do not use rounded intermediate values in your calculations—including answers submitted in WebAssign. Indicate the direction with the sign of your answer.)I1=?I2=?I3=?The current in the circuit above is 0.5 A. We will refer to the battery on the left as 1, and the battery on the right as 2. (F) What is the power dissipated in R? _____watt(s) (G) What is the electric power supplied by the 9 volt battery? ______watt(s)What is the maximum voltage that can be applied to a 186 k ohm resistor rated at 16 watts? Give your answer as an exact number. Your Answer: Answer
- The figure shows a resistor of resistance R = 6.102 connected to an ideal battery of emf 8 = 15.4 V by means of two copper wires. Each wire has length 21.4 cm and radius 2.20 mm. In dealing with such circuits in this chapter, we generally neglect the potential differences along the wires and the transfer of energy to thermal energy in them. Check the validity of this neglect for the circuit of the figure below. What is the potential difference across (a) the resistor and (b) each of the two sections of wire? At what rate is energy lost to thermal energy in (c) the resistor and (d) each section of wire? 8=1 Wire 1 R Wire 2A 5.5 A current is set up in a circuit for 6.2 min by a rechargeable battery with a 9.0 V emf. By how much is the chemical energy of the battery reduced?