A current of 0.228 A flows through a(n) 8.22 2 resister. Calculate the voltage drop across the resister. Express your answer to three significant figures.
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- What current flows through a 2.54-cm-diameter rod of Pure silicon that is 20.0 cm long, when 1.00103 V is applied to it? (Such a rod may be used to make nuclear- particle detectors, for example.)A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any wires used for connections is negligible, (a) What is the current through the resistor? (b) What is the power dissipated by the resistor? (c) What is the power input from the battery; assuming all the electrical power is dissipated by the resistor? (d) What happens to the energy dissipated by the resistor?Consider a power plant is located 60 km away from a residential area uses Q-gauge (A=42.40mm2) wire ofcopper to transmit power at a current of I = 100.00 A.How much more power is dissipated in the copper wires than it would be in superconducting wires?
- A 0.900-V potential difference is maintained across a 1.50-m length of tungsten wire that has a cross-sectional area of 0.600 mm2. What is the current in the wire?= 250 [12]. Andami namang resistors! Consider the resistor network shown in the figure, with R₁ R₂ = 1.0 [kN], R3 = 1.2 [kN], R4 = 1.0 [kN], and R5 = 1.5 [k]. The source voltage & is 24 [V], and has no internal resistance. What is the current passing through R₁? E R₁ www www R₂ O A. 34 [mA] O B. 54 [mA] O C. 96 [mA] O D. 104 [mA] www R3 R4 R5Two resistors of resistance 230 O and 340 O are connected in series (one after the other). A potential difference of 20 V is applied between the ends of the chain. a)What is the total resistance of the circuit (in O)? Give your answer as a whole number. b)Calculate the current flowing through the circuit (in A). Gve your answer to 3 d.p. and use this value to that degree of accuracy, in subsequent calculations, if needed. c)Calculate the potential difference across the 230 O resistance. Give your answer in volts to 2 d.p..
- a) . The equivalent resistant seen by the source. b) The total current I. c) . . The voltage across the 2K resistor. 1 kN 1 kΩ> 4 kN 20V 3 kN 2 kN 6.6 kNA 22 Ω resistor and a 4 Ω resistor are connected in series to an ideal 12 V battery.Find the current in each resistor.Answer in units of A.Find the potential difference across the firstresistor.Answer in units of V.Find the potential difference across the secondresistor.Answer in units of V.Let's say you have a 20 cm long silicon wire, with a diameter of 4 cm. What current flows through this wire if a 1000 V potential difference is applied to the two ends? Please enter your answer in the unit of mA. You can use 2300 Ohm.m for the resistivity of silicon.
- The following graph represents the charge-discharge profile of a Li-ion battery in the 1st and 50th cycles, cycled at a rate of 0.1 C (1C = 274 mA h g-1 ) in the voltage range of 3.0 to 4.6 V. The battery is made up of LiCoO2 cathode and Li anode. Answer the following questions. a. What is the value of charge-discharge current density in this case? How long does it take for this battery to discharge from 4.6 V to 3.0 V in 50th cycle? b. Calculate Coulombic efficiency at 1st and 50th cycles. Why are these values different? c. How would this graph look like if LiCoO2 and Li were replaced by MnO2 and graphite electrodes respectively Make a rough sketch. d. Mention any two practical disadvantages of this battery?Three resistors, RA=4 k N, RB=1.0 N, and Rc=2 N are connected to a battery providing potential difference 2.4~V, as shown in the picture below. RB RA Rc What fraction of the total current goes through the resistor RĄ? Provide your answer with a precision of three places after decimal.A typical lightning bolt may last for 0.197 s and transfer 1.13 x 1020 electrons. Calculate the average current (in A) in the lightning bolt. HINT Apply the definition of average current. A Click the hint button again to remove this hint.