Example 9.6 Determine V. p 12 V Si Ge Vo 2.2 k2 Fig. 9.12 Example 9.6
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Q: D B ww 8.50 Ω 11.5 V 15.0 V 6.22 www 15.1 Ω ww A 1 of 1 > Part E Calculate the potential at point D…
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- AQA Physics GCSE Student calculation sheet Name.... Class P5.4 To calculate the energy supplied we need to use the equation E-VxQ E= 12 x 150 = 1800 J Step 4: And finally, to calculate power = E or V x I Date So power = 1800 30 60 W Questions 1 the terminals? The potential difference between the two terminals on a battery is 9 volts. How much work (energy) is required to transfer 10 coulombs of charge across of 2 10 joules of work (energy) is required to transfer 2 coulombs of charge from X to Y. What is the potential difference between these two points? ont of a 3 To transfer a quantity of charge between points C and D of a circuit, which have a potential difference of 30 volts, 600 joules of energy is required. How much charge is transferred? 4 A 4 kilowatt cooker is used for 30 minutes. a How many joules of electrical energy are transferred? (1 mark) (2 marks) (2 marks) (3 markThree capacitors are connected as shown, where C = 0.045 F. A. Input an expression for the equivalent capacitance between points a and b, in terms of C. B. What is the capacitance, in farads? C. If the capacitors are charged with a ΔV = 10 V source, how much energy will the circuit store, in joules?Electrons flow through a 1.5-mm-diameter aluminum wire at 1.0x10-4 m/s. Part A How many electrons move through a cross section of the wire each day? 5 ΑΣΦ xa Xb Ĵ a + √x vx x N= 9.16.1023 x Submit Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining |xx| ? X. 10m B electrons
- To recharge a 11 V battery, a battery charger must move 3.8 105 C of charge from the negative terminal to the positive terminal. How much work is done by the charger? Express your answer in joules. JFind the potential difference between point a and point b for the situation shown below. Here E₁ = 12.0 V, E₂ = 9.27 V and R₁ = 3.73 2, R₂ = 5.842, and R3 = 1.88 2. Va - Vb = www R2 b V www R3 www R₁ &₁TECNO O6 SPARK 0-254 fird He Value fe Rn
- QUESTION 6 w = 2nV O True O FalseSolar panels are planned to be installed directly under a power cable (cable diameter 14 mm). What is the optimal distance between the power cable and solar panel? Select one: a. 2.5 m. b. 1.5 m. c. 3.0 m. d. 2.0 m. e. 1.0 m.Living cells "pump" singly ionized sodium ions, Na", from the inside of the cell to the outside to maintain a membrane potential AV membrane = Vin - Vout - 70 mV. It is called pumping because work must be done to move a positive ion from the negative inside of the cell to the positive outside, and it must go on continuously because sodium ions "leak" back through the cell wall by diffusion. a. How much work must be done to move one sodium ion from the inside of the cell to the outside? b. At rest, the human body uses energy at the rate of approxi- mately 100 W to maintain basic metabolic functions. It has been estimated that 20% of this energy is used to operate the sodium pumps of the body. Estimate-to one significant figure the number of sodium ions pumped per second.