You wired an electric lamp and an electric stove in parallel to an ideal battery with emf, & = 120-V, and found that the current through one of them was 5.0 A, while the current through the other 3.4 A. How much current will flow through each device if you wire them in series instead of in parallel? A A llamp Istove =
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- You charge an initially uncharged 69.1 mF capacitor through a 24.9 2 resistor by means of a 9.00 V battery having negligible internal resistance. Find the time constant t of the circuit. What is the charge Q on the capacitor 1.25 time constants after the circuit is closed? What is the charge Qo after a long amount of time has passed? C QoEia.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?
- 1.00 MQ A conducting sphere is charged by an emf source E through a 1.00 MO resistor. When the sphere is fully charged, it has 2 µC charge. The highest current during the charging was I mA. What is the electrical potential energy of the sphere when it is fully charged? Give your answer in mJ.Giant electric eels can deliver a voltage shock of 5.00 x 102 V and up to 1.00 A of current for a brief time. What is the maximum power a giant electric eel can deliver to its prey during this time? maximum power: The body of a snorkeler swimming in salt water has a resistance of about 625 2. If the snorkeler is unfortunate enough to be struck by the eel, what current will flow through her body? current: A A current of about 500 mA can cause heart fibrillation and death if it lasts too long. Is the current through the swimmer in this case large enough to be dangerous? no О yes What power does the snorkeler receive from the eel? power: WIn the figure the current in resistance 6 is i, = 1.46 A and the resistances are R = R2 = R3 = 1.77 Q, R4 = 16.3 Q, R5 = 8.19 Q, and Rg = 4.61 Q. What is the emf of the ideal battery? R R R. R Number Units
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- Problem Set ENG207B: Physics for Engineers B 5. In the circuit shown, 30 +. Determine the following A. Magnitude and direction of the current B. The potential differences Vad, Ver and Vne 7 V 2 V+ 6 V 14V 出 關 一iUsing Kirchhoff's rules, find the following. (E, = 70.8 V, E, = 62.0 V, and & = 78.8 V.) b. 4.00 kN d E E, E. R3 R2 3.00 kN 2.00 kN a R1 (a) the current in each resistor shown in the figure above mA IR3 mA (b) the potential difference between points c and f magnitude of potential difference V point at higher potential Select-- vI am having trouble, can I please get some assistance with these questions! Four resistors with resistance, R1= 6ohms, R2= 4ohms, R3= 5ohms, and R4= 3ohms are arranged in the circuit to the right along woth a battery with a potential difference of 12V. A. What is the equivalent resistance of the entire circuit? B. What is the potential across and the current through resistor R1? C. What is the potential across and the current through resistor R4? D. What is the power dissipated by resistor R1?