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- A 100 μF defibrillator capacitor is charged to 1500 V. When fired through a patient's chest, it loses 95% of its charge in 40 ms. ▼ Part A What is the resistance of the patient's chest? Express your answer to two significant figures and include the appropriate units. R= Submit 10 HÅ Value Request Answer Units ?a.Estimate the electrical resistance of the blood in a 50cm long, 3mm diameter artery. The resistivity of blood is 1.6 ohm-meter.Express your answer in cΩ, mΩ,μΩ, and nΩ. B. Suppose the energy for two doughnuts in Thermodynamics are totally converted into electric potential energy at point a, wherein a dust particle of 5 × 10-9 kg with 9nC charge is travelling from point a with 600 m/s to point b (where there is no electric potential energy). How fast does the dust particle is moving at point b?A gold wire 5.45 m long and of diameter 0.890 mm carries a current of 1.25 A. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Electrical hazards in heart surgery. Part A Find the resistance of this wire. Express your answer in ohms. R = Submit Part B —| ΑΣΦ V = Request Answer Find the potential difference between its ends. Express your answer in volts. | ΑΣΦ ? ? Ω V
- The electromotive force of a battery is given by E = 6 volts. A resistor wtih resistance R = 71 N is connected in series with the battery. What is the current through the circuit? Give your answer to at least two significance digits. A What is power loss in the resistor? (give absolute value as the input.) Give your answer to at least two significance digits. J/sWhat is the resistivity of an unknown material that is made into a 5.0 m long, 0.62 cm x 0.62 cm square profiled wire? It has a total resistance of 8.0 N. Express your answer in ohm-meters. Vα ΑΣφ p = N.mR = Two identical resistors of Ro= 41 Q are connected head-to-tail. www Express the resistance Ro of one of the resistors in terms of the resistivity p, length L, and the cross section area A. Calculate the total resistance R of the two resistors in ohms. R R
- Three resistors, R1= 30 Ω, R2= 77 Ω, and R3=R, are connected in parallel with a 12 V battery. A) The total current flowing through the battery is 0.88 A. Find the value of resistance R. Express your answer using two significant figures. B) Find the current through each resistor. Enter your answers numerically separated by commas. Express your answers using two significant figures.Two aluminum wires have the same resistance. If one has twice the length of the other. What is the ratio of the diameter of the longer wire to the diameter of the shorter wire? O A. 1.41 О в. 2 OC. 0.71 D. 0.5 O E. Noneif possible, please write on paper and upload photo of paper. Other forms of answers do not show for me. Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.3 mm. Conductor B is a hollow tube of outside diameter 7.1 mm and inside diameter 6.1 mm. What is the resistance ratio RA/RB , measured between their ends?
- A wire of length L and cross-sectional area A has a resistivity p. Which of the following formulas can be used to calculate the resistance of the wire? L A Select one: A a. R = pL b. R = PL A С. d. R =L A e. R = - PA е.3:08 l LTE Youngstown State University Edit Friday 9:58 AM 1. A conductor of radius r, length l and resistivity p has resistance R. It is melted down and formed into a new conductor, also cylindrical, with one fourth the length of the original conductor. What is the resistance of the new conductor? (Hint: the volume stays the same) 16R a. b. 4R c. 1. d. 4 iR 16R e.Ex : A heavy bus bar is 20 cm long and of rectangular cross-section, 1.0 cm × 2.0 cm. What is the voltage drop along its length when it carries 4000 A ? ( The resistivity of copper is 1.68 × 10-8 N.m ).