Physics

Electricity measuring equipments

A plug-in transformer supplies 9.00 V to a video game system. (a) How many turns are in its secondary coil if its input voltage is 120 V and the primary coil has 383 turns? 29 turns (b) What is its input current when its output is 1.13 A? 0.9 How are the voltages in the secondary and primary coils related to the input and output currents? A

6. [-11 Points] DETAILS OSCOLPHYS2016 23.7.WA.030. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A plug-in transformer supplies 9.00 V to a video game system. (a) How many turns are in its secondary coil if its input voltage is 120 V and the primary coil has 383 turns? turns (b) What is its input current when its output is 1.13 A? A Additional Materials Reading

Galvanometer (G) having full scale deflection current I, and resistance R is used in combination with resistances to form an ammeter whose range (1) is given in Column-II. Match the entries in Column-I with the entries in Column-II. Column-1 Column-11 A1. /is maximum R w Q1. 2R WW A2.31, Q2 WWW R R www A3.2 i Q3. 04. A4.61 R WWW 4R WWW A5.4 ig A1 A2 A3 A4 A5 Q1 L Q2 03 U

Problem 2.68 ✓ Correct Certain insects can achieve seemingly impossible accelerations while jumping. The click beetle accelerates at an astonishing 400g over a distance of 0.58 cm as it rapidly bends its thorax, making the "click" that gives it its name. Part B How much time is required for the beetle to reach this speed? Express your answer with the appropriate units. t = 1.7 ms > Sabri Previous Answers Credit granted by instructor; correct answer displayed Part C Ignoring air resistance, how high would it go? Express your answer with the appropriate units. ol MA ? Ay = Value Units Submit Request Answer Provide Feedback P Pearson

26% 4 + Adrive.google.com 9:10 PM Wed Sep 8 x Lab Documents - G... AA Loading Rounding Numbers.... Documents, Syllab Par Lab 1 Error Analysis pdf Axav=o/VN Uncertainty In the Mean (Axml Uncertainty in the mean value of x. The actual value of x will be somewhere in a neighborhood around. This neighborhood of values is the uncertainty of the mean. X = X AX vg Measured Value The final reported value of a measurement of x contains both the average value and the uncertainty in the mean Most of the time we will be using the formulae for small data sets. However, occasionally we perform experiments with enough data to compute a meaningful standard deviation. In those cases we can take advantage of software that has programmed algorithms for computing Xavg and o > < Experimental Data: The following data were taken for a pendulum with a length of 121 + 1cm. The data in the left column were measurements of individual periods. The data in the right column were for the time it took for 10 oscillations of the pendulum. Period (s) 1.98 2.22 2.00 2.13 2.16 2.15 2.10 2.28 2.41 2.19 Ten Periods (s) 21.92 22.38 22.11 22.00 21.89 Use the appropriate error analysis method and determine the mean, the uncertainty in the mean and the uncertainty in the measurements for each set of data. Given that the period of a simple pendulum is given by: T = 27V(L/g) Where L is the length of the pendulum and g is the acceleration due to gravity, determine which method provides the best precision and which the best accuracy. The same set may do both. Page 6 / 7

9. What is the current of a circuit with a voltage of 24V and a resistance of 40? 10. What is the voltage of a circuit with 25A and 3Q? 11. What is the series equivalent resistance (Roa) of the following circuit? R, 5KM Rz 12v 71n kez 8KR

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