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QUESTIONS 1. Suppose that an electroscope is electrically neutral. Can this neutral electroscope be used to determine (Explain your answers.) whether an object carries a net charge and a. b. whether the net charge is negative or positive?

QUESTIONS 1. Suppose that an electroscope is electrically neutral. Can this neutral electroscope be used to determine (Explain your answers.) whether an object carries a net charge and a. b. whether the net charge is negative or positive?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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Answer a and b in simple terms 

QUESTIONS 1. Suppose that an electroscope is electrically neutral. Can this neutral electroscope be used to determine (Explain your answers.) a. whether an object carries a net charge and b. whether the net charge is negative or positive?
Transcribed Image Text:QUESTIONS 1. Suppose that an electroscope is electrically neutral. Can this neutral electroscope be used to determine (Explain your answers.) a. whether an object carries a net charge and b. whether the net charge is negative or positive?
MATERIALS EXPERIMENTAL ACTIVITIES ACTIVITY 1: ELECTRIC CHARGES In this activity, you will be transferring carriers of electric charge by friction and by contact. You will also be observing the interactions of charged objects and comparing them qualitatively. Perform each necessary, rub the rods vigorously to transfer significant amounts of charges. part of the experiment several times to be sure you have accurate observations of each phenomenon. If Plastic and glass rods • Fur pelt and plastic sheet ELECTROSTATICS • Pith balls Electroscope OBSERVATIONS: CHARGING THE ELECTROSCOPE Charge the plastic rod by rubbing it with the fur pelt. The rod will receive negative charges (electrons) from the sheet. Follow these steps: PART I Locate the charged rod close to, but not touching, the electroscope. Show the new position of the leaves, the charges on the leaves, and the charges on the top of the electroscope in Figure 1.9 of the Report Sheet. • PART II Touch the electroscope with the charged rod and show the position of the leaves, the charges on the leaves, and the charges on the top of the electroscope in Figure 1.10 of the Report Sheet. Discharge the electroscope by touching it. Charge the glass rod with the plastic sheet. The rod will transfer electrons to the sheet. Follow the same two steps described above and show your observations in Figure 1.11 and Figure 1.12 of the Report Sheet. Laboratory 1 | Electrostatics 41
Transcribed Image Text:MATERIALS EXPERIMENTAL ACTIVITIES ACTIVITY 1: ELECTRIC CHARGES In this activity, you will be transferring carriers of electric charge by friction and by contact. You will also be observing the interactions of charged objects and comparing them qualitatively. Perform each necessary, rub the rods vigorously to transfer significant amounts of charges. part of the experiment several times to be sure you have accurate observations of each phenomenon. If Plastic and glass rods • Fur pelt and plastic sheet ELECTROSTATICS • Pith balls Electroscope OBSERVATIONS: CHARGING THE ELECTROSCOPE Charge the plastic rod by rubbing it with the fur pelt. The rod will receive negative charges (electrons) from the sheet. Follow these steps: PART I Locate the charged rod close to, but not touching, the electroscope. Show the new position of the leaves, the charges on the leaves, and the charges on the top of the electroscope in Figure 1.9 of the Report Sheet. • PART II Touch the electroscope with the charged rod and show the position of the leaves, the charges on the leaves, and the charges on the top of the electroscope in Figure 1.10 of the Report Sheet. Discharge the electroscope by touching it. Charge the glass rod with the plastic sheet. The rod will transfer electrons to the sheet. Follow the same two steps described above and show your observations in Figure 1.11 and Figure 1.12 of the Report Sheet. Laboratory 1 | Electrostatics 41
Expert Solution
Step 1

Electroscope:-

  • Based on the Coulomb electrostatic force, which moves the test charge, the electroscope measures the charge. 
  • Given that an object's capacitance is equal to its electric charge, an electroscope can be thought of as a primitive voltmeter. 
  • An electrometer is a device that is used to quantitatively measure the charge.
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