27. What is the sum of :81 um + 96 cm + 148 mmA. 1.108081 mВ. 1.108 тС. 1.11 тD. 1.1 m28. The voltage V across a resistor was measured tobe 898 mV and the current / through the resistorwas measured to be 0.45 A. What should theresistance be?A. 2000 ohmsB. 1996 ohmsC. 2.0 ohmsD. 2 ohms

Answered: Image /qna-images/answer/56775911-f7e3-4c7f-8035-1f1bfc0d1016.jpg

Answered: 27. What is the sum of : 81 um + 96 cm…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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1. For the following, put all final answers in the +20V table below or sketch a similar table. а. Solve for the equivalent resistance of the circuit. Put your final answer in the table. 12 Q b. Solve for the voltage across and the 1Q 20 Q current through each resistor in the circuit. Fill in the table. Equivalent Resistance = Ω Resistor (2) ||AV| (V)| |I| (A) 1 5 12 20
4. Which of the following statements is true of the voltameters? A. Voltmeter 1 and voltmeter 2 will read the same voltage. B. Voltmeter 1 will read 6 V. C. Voltmeter 2 will read 6 V. D. Voltmeter 2 will read the correct voltage across the 3Ω resistor. E. Both voltmeters will read the correct voltage across the 6Ω resistor.
1.3 Ohmmeter: In order to use the basic meter as an ohmmeter, a variable resistor and a DC voltage source, for example a battery, should be connected in series to the meter. The connection diagram is given in Fig. 3. The resistor to be measured is connected between terminals a and b. Ry max 1 mA Rm A + a Rx Figure 3. . VDC 9
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9. For the following circuit the resistances are: R₁ - 2200, R₂-360, R₂-540. Calculate the total resistance for the circuit. R₂ R₁ # a. 390 Q b. 4400 c. 680 d. 5200 I
3. Find the readings of the ammeter and voltmeter in the circuits in Figure 3. The resistance of the voltmeter is Ry = 1 200 Q, the voltage at the battery is U = 80 V, the resistances R1= 300 Q and R2 = 480 N. Disregard the resistance of the battery and the ammeter. R1 Figure 3.
3. When the temperature is 5oC, the resistance of the carbon resistor is 217.2Ω. What is the temperature if the resistance is 212.7?
A circuit contains three resistors connected in series across 100 volts; the circuit current is 2 Amperes. Two resistors (R1 and R2) have known values of 5 and 10 ohms,respectively. Determine:a. The resistance of the entire circuit.b. The resistance of the third resistor R3.c. The voltage drop across each resistor
D nected in series and placed across a potential difference of 50 V. What is a. the equivalent resistance of the circuit? b. the current in the circuit? c. the voltage drop across each lamp? d. the power dissipated in each lamp? A 20.0-2 lamp and a 5.0-2 lamp are con-
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27. What is the sum of : 81 um + 96 cm + 148 mm A. 1.108081 m C. 1.11 m В. 1.108 т D. 1.1 m 28. The voltage V across a resistor was measured to be 898 mV and the curent / through the resistor was measured to be 0.45 A. What should the resistance be? C. 2.0 ohms D. 2 ohms A. 2000 ohms B. 1996 ohms