Physics, 24.04.2020 17:56 debnkids691
Batteries are not perfect. They can't deliver infinite current. As the current load on a battery gets larger, the voltage output gets smaller. We can represent this by treating batteries as if they have some small internal resistance. The circuit shows a battery hooked up to a resistor, a voltmeter (for measuring voltages), and an ammeter (for measuring currents). When you put a measuring device on something, like a circuit, you don't want to change the circuit. So this means that ideal voltmeters have infinite resistance, and ideal ammeters have zero resistance. In reality, neither of these are true, but for this problem, and for all other problems unless you're told otherwise, we'll assume that our ammeters and voltmeters are ideal. When switch S is open, the voltmeter (V) reads 3.80 V. When the switch is closed, the voltmeter reading drops to 3.61 V and the ammeter (A) reads 0.150 A.
Answers: 1
Physics, 22.06.2019 01:30
Question 7 [2 marks] in the circuit below, the electromotive force generated by the battery is e = 6.0 v, and the resistances are r1 = r4 = 1.0 q, r2 = r3 =2.0 q. r. the power delivered by the battery to the circuit is closest to a. 6 w в. 12 w с. 15 w d. 18 w e. 20 w final exam autumn 2014 page 5 of 9 68037 physical modelling faculty of science [2 mark] question 8 with reference to question 7, the current through resistor r2 is closest to a. 1 a в. 2 а c. 3 a d. 4 a e. 6 a
Answers: 2
Physics, 22.06.2019 10:00
The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.
Answers: 3
Physics, 22.06.2019 11:50
Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)
Answers: 2
Physics, 23.06.2019 01:20
Question 1 of 15 2 points when doing science as inquiry, you should have some idea of what you think the final result will be. o a. true o b. false submit
Answers: 1
Batteries are not perfect. They can't deliver infinite current. As the current load on a battery get...
English, 13.10.2020 17:01
History, 13.10.2020 17:01
Biology, 13.10.2020 17:01
Engineering, 13.10.2020 17:01
Mathematics, 13.10.2020 17:01
History, 13.10.2020 17:01
Computers and Technology, 13.10.2020 17:01
Mathematics, 13.10.2020 17:01
Mathematics, 13.10.2020 17:01