According to the HOMEWORKLIB RULES I am allowed to answer only 1 question at a time.
using V = IR
R = V/I
= 5 volt / 0.400 A
R = 12.5 ohm ANSWER
Labd 2: Ohm's law and the Measurement of Resistance 1. The voltage drop on a carbon...
(cdepends on both resistance und D. does not depend on resistance and potential difference 3. The nominal rating of a fuse in an ammeter is 200 A. Assume you are using a 75 kN resistor, what is the maximum voltage you can apply to the resistor before the fuse in the ammeter will break. (5)
Ohm's Law Name MWITTH Laboratory Report Questions: 1. If the switch were kept closed during the procedures, and the circuit components heated up. how would this effect the measurement of current (D)? Hint, think about how resistance (R) depends on temperature (T) for a carbon resistor. 2. For the rheostat, compute the values of resistance Rh and voltage drop Vh across the rheostat if, Vi-5.0V, the Ammeter reads I-0.056A, and the voltmeter reads Vs-1.69 V.
Pre-lab EM-5 Ohm's Law and Kirchhoff's Rules Ohm's Law The resistance R of a device can be determined by either directly measuring the resistance using an ohmmeter, or by measuring the current I through it and the voltage Vacross it, and then calculating R using Ohm's Law V R= (1) If the voltage across a resistor is 10V, and the current passing through it is 2.5 mA. of the resistor? What is the resistance R= Ω. Kirchhoffs Loop Rule Around...
Ohm's law states V = IR, Voltage = Current x Resistance. If a toaster has a resistance of 60 ohms and is plugged into a 120 volt outlet, how much current will it "draw"? 5 Amps 2 Amps O 0.5 Amps O 1 Amp
1) (lab manual, Ch. 22.5) State Ohm's law in words. a. (lab manual, Equation 22.8) Write the corresponding equation for Ohm's law. Define all variables. What are the SI units of each variable? b. (Example 22.5) If a potential difference of 3.0 V and a current of 0.10 A is measured in the circuit, what is the measured resistance value of the resistor? Include all units. c. (lab manual, Ch. 22.5) How can resistance be determined for an ohmic device...
1. How is a voltmeter inserted in a circuit in order to measure voltage? 2. How is an Ammeter inserted into a circuit to measure current? 3. What does a voltmeter represent in a circuit? What is the significance of this? esi 4. If resistance is increased and current is constant, what happens to voltage at that r 5. If the current through a resistor is increased, what happens to voltage drop at that resistor? 6. What is the relationship...
1. Answer A-D having to do with Ohm's Law: A. What is the resistance of a toaster if 111 V produces a current of 4.28 A? B. What voltage will produce 0.45 A of current through a 4996 Ω resistor? C. What is the current in the element of an electric clothes dryer with a resistance of 8.86 Ω when it is connected to 243 V? D. What is the resistance of a 13.00 m length of copper wire 2.0...
Question 1 8.75 pts Ohm's law states V = IR, Voltage = Current x Resistance. If a toaster has a resistance of 60 ohms and is plugged into a 120 volt outlet, how much current will it "draw"? O 5 Amps O2 Amps O 0.5 Amps 1 Amp Question 2 8.75 pts The atomic nucleus is most often made up of protons protons and neutrons Fermions neutrons electrons
Section Date Sudent Name Report on Laboratory Experiment "Ohm's Law" DATA TABLES Table 1: 200 2 Resistor Table 2: 100 Ω Resistor Current Voltage Current Voltage mA mA 1o.2 2 21 21 2 413 5 52. 10 11 |513 Nominal value Resistance determined from slo pe of graph | % Error Measured value 200 Ω Resistor Resistance from Table 1- 100 Ω Resistor | Resistance from Table 2- QUESTION: Do these resistors satisfy Ohm's law? Please explain your answer.
2) A resistor of unknown resistance is connected to a power supply capable of producing electrical potentials from 0 volts to 10.0 volts. A student connects an ammeter in series with the power supply and resistor so that he can record the current flowing through the system. He produces the chart shown below. Potential Difference vs. Current M Potential Diff (V) 1.0 0.01 0.02 0.03 0.04 2.0 Current (A) 0.008 0.018 0.026 0.035 0.047 Current (A) 4.0 a. Label the...