Q3/ A- A voltmeter having a sensitivity of (1500 Ohm/V) reads (75V) on its (150V) scale when connected across an unknown resistor in series with a milliammeter. When the milliammeter reads (10mA), Calculate: 1- Determine the apparent value of the resistance Rx? 2- Determine the actual value of Rx? 3- Determine the percentage error in Rx value?

Q3/ A- A voltmeter having a sensitivity of (1500 Ohm/V) reads (75V) on its (150V) scale when connected across an unknown resistor in series with a milliammeter. When the milliammeter reads (10mA), Calculate: 1- Determine the apparent value of the resistance Rx? 2- Determine the actual value of Rx? 3- Determine the percentage error in Rx value?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

A voltmeter having sensitivity of 200 ohm/volt reads 119 V on its scale of 219 V when connected across an unknown resistance in series with a multimeter. When the multimeter rads 5mA, calculate the error due to the loading effect of voltmeter. Also calculate the error if the milliammeter reads 800mA and voltmeter reads 40V on its 219 V scale.
Objectives: Voltage drop measurements using resistors connected in series. The relationship between resistance value and voltage drop (Kirchhoff’s Second Law) Circuit components: 1 Plug-in board, DIN A4 576 74 1 STE resistor, 100 W, 2 W, 5% 577 32 1 STE resistor, 150 W, 2 W, 5% 577 34 1 STE resistor, 1 kW, 2 W, 5% 577 44 Power Supply: 1 AC/DC stabilizer 726 88 Connectors: 3 Pairs of connecting leads, red/blue, 50 cm 501 45 1 Set of 10 bridging plugs 501 48 Measurement Instruments: 1 Voltmeter, 10 V DC 1 Amperemeter, 10 mA DC Measuring the voltage drop across resistors…
Given circuit, if the ideal ammeter and voltmeter are connected at the same time, what are the values measured by a. I1=? b. I2=? c. Vm=?
The resistance of gold wire used in circuits is usually negligible compared to the components in the circuit, and can be ignored. For long, thin wires, this is no longer true. Calculate the resistance, in ohms, of a length of gold wire, 46.6 cm long, with a cross sectional area of 2.5 mm2. The resistivity of gold is 2.35×10-8 Ω.m. Use 2 significant figures in your answer.
Look at the images shown. Why can we measure resistance with a pencil drawn on a piece of paper? What is the component/material that is on the pencil that gives a high resistance? With the values given on the images, what are the corresponding color codes (indicate tolerance using a 4-band color code scheme)? If the first value is connected in series with the other value, what is the total resistance? If it’s parallel what is the total resistance? 0.449 mega ohms 102.2 kilo ohms
In the circuit above, the ammeter (A) is an ideal ammeter (so without internal resistance); the voltmeter (V) is also ideal (so with an infinitely large resistance). The two e.m.f. sources have negligible internal resistance. The voltmeter reads a positive value when the voltage of the ++-connector is higher than the voltage of the -−-connector (see picture) The ammeter reads a positive value when the current runs from the ++-connector to the -−-connector. What are the readings of the ammeter and the voltmeter?
The power usage of a DC strip heater can be determined in either of two ways: (1) Heater resist- ance and voltage drop can be measured simulta- neously and power computed, or (2) heater voltage drop and current can be measured simultaneously and power computed. Instrument manufacturer specifications are listed (assume 95% level): Ohmmeter: - 1 Ω = Resolution, 0.5% =Uncertainty (% reading) Ammeter: 0:5 A = Resolution, 1% =Uncertainty (% reading) Voltmeter: 1 V = Resolution, 0.5%=Uncertainty (% reading) For loads of 10 W, 1 kW, and 10 kW, determine the best method based on an appropriate uncertainty analysis. Assume nominal values as necessary for resistance, current, and voltage.
For the circuit in the figure, find the ones requested in the questions by using the following values? Vi= 26 V, VZ= 9,5 V, PZMAX=27,1 mW RS=2 kΩ RLmin=?RLmax=?
The power usage of a DC strip heater is to be determined at a 95% confidence level, using a voltmeter and ohmmeter (P =E2/R). Determine the design state uncertainty of power, using a nominal vale of E = 8v and R = 5 ohm. Instrument Error (95%) Resolution Voltmeter +- 0.5% 0.01 [V] Ohmmeter +- 0.3% 0.001 [ohm]
a)Find the Thévenin equivalent voltage (in Volts) with respect to the terminals a, b for the provided circuit diagram. Assume that R = 32 Ω. b) Find the Thévenin equivalent resistance (in ohms) for the provided circuit diagram.
Given this scenario, If XMM2 is an Ammeter and its reading is 0A, andXMM3 is a Voltmeter and its reading is 10V, What is the state of thetransistor? What is the cause of it? Explain your answer.
For the circuit in the figure, find the ones requested in the questions by using the following values? Vi= 33 V, VZ= 5,1 V, PZMAX=23,3 mW RS=1,3 kΩ RLmin=? RLmax=?