Question

In: Physics

1. Determine which of the following statements is true about electric field lines in the vicinity...

1. Determine which of the following statements is true about electric field lines in the vicinity of two point charges of equal magnitude and opposite sign.

a. they are small according to the magnitude of the loads decrease

b. indicate the relative magnitude of the electric field

c. is larger as the magnitude of the loads increases

d. does not depend on the magnitude of the loads

e. indicates the direction of the electric field

2. An electric field causes an electron to move east. The direction of the electric field is towards.

a. East

b.South

c. North

d. West

3. An electric field has a magnitude of 2,160 N / C. If the force on a load is 0.01296 N, determine the magnitude of the load

a. 11 microCoulomb
b. 2 microCoulomb
c. 6 microCoulomb
d. 9 microCoulomb
e. 4 microCoulomb

4. The electric field at 2.0 m from a strut charge has a magnitude of 80,000 N / C. Determine the intensity of the electric field at a distance of 4.0 m.

a. 40,000 N/C

b. 160,000 N/C

c. 320,000 N/C

d. 20,000 N/C

Expert Solution

1. Answer: e. indicates the direction of the electric field

Explanation: electric field lines between two point charges indicates the direction of the electric field between them

2. Answer: d. West

Explanation: Electric field lines are always from positive charge to negative charge. Electron being a negative charge always attracted by the positive charge . As the electron is moving to East , positive charge is in the East and negative charge is in the west . So magnetic field directed to the West.

3. Answer: c. 6 micro Coulomb

Solution: Load = Force/ Electric field = 0.01296 /2160 = 6 X 10 ^-6 C = 6 micro Coulomb

4. Answer:d. 20000 N/C

Explanation: As the electric field intensity is inversely proportional to the square of the distance , magnitude of the intensity will be 1/4 th as the distance increased by factor 2 .

so Magnitude will be 80000/4 N/C = 20000 N/C

Thank You.

genius_generous answered 2 years ago

Which of the following statements are true for magnetic field lines? Check all that apply. A.)...

Which of the following statements are true for magnetic field lines? Check all that apply. A.) Magnetic field lines are close together in regions of space where the magnitude of the magnetic field is weak, and they are farther apart in regions where it is strong. B.) Unlike electric field lines, magnetic field lines are continuous. C.) Magnetic field lines point in the direction of the magnetic force acting on a charge. D.) At every point in space, the magnetic...

Which of the following statements are true? True False Magnetic field lines always start at a North...

Which of the following statements are true? True False Magnetic field lines always start at a North and end at a South pole. True False When placing a dipole magnet into a magnetic field, it will be accelerated perpendicular to the field lines. True False The force on a moving charge is perpendicular to both the field and its velocity. True False The larger the charge of a moving particle, the more it will accelerate inside of a magnetic field.

Select True or False to each of the following statements about this week's electric field mapping...

Select True or False to each of the following statements about this week's electric field mapping experiment. In order to receive credit for this question you must answer ALL statements correctly. NOTE: The number of attempts has been reduced on this question. True False Electric field lines can curve. True False All electric potemtials are measured with respect to the positive terminal of the power supply. True False The COM port of the digital multimeter (voltmeter) is connected to the positive terminal of...

Determine which of the following statements is true: a. A magnetic field exerts force on a...

Determine which of the following statements is true: a. A magnetic field exerts force on a moving charge b. Magnetic field exerts force on a charge at rest c. Magnetic field exerts force on a charge that moves parallel to the field d. Magnetic field exerts force on both moving charge and resting charge A proton and an electron enter a region of uniform magnetic field with a velocity oriented perpendicular to the field. Determine which of the following statements...

Which of the following statements are true about surgical asepsis and sterile field?

Learning Activity Review Questions Which of the following statements are true about surgical asepsis and sterile field? (select all that apply) A. The nurse may turn her back to the sterile field if the nurse needs to grab an item. B. The 1-inch edge around the sterile field is sterile. C. A sterile item can touch another sterile item without contaminating it. D. Sterile items must remain above the waist. E. Pour the liquid into the sterile basin without touching the bottle. c

Which one of the following general statements about surplus lines insurance is true? Select one: a....

Which one of the following general statements about surplus lines insurance is true? Select one: a. State guaranty funds do not cover the policyholders of surplus lines insurers b. Surplus lines insurers are subject to state form and rate filing regulations c. All non-admitted insurers are surplus lines insurers d. Admitted insurance companies must write insurance in the surplus lines market

Which of the following statements is true of product lines? a. They limit the product...

Which of the following statements is true of product lines? a. They limit the product choices offered to customers to one or two product items. b. They provide economies of scale in advertising. c. They require greater transportation and warehousing costs than product items. d. They increase a firm's manufacturing and inventory costs. Which of the following statements is true of convenience products? a. They are shopping products that are not actively sought after by...

How are the properties of magnetic field lines similar to the properties of electric field lines?How...

How are the properties of magnetic field lines similar to the properties of electric field lines?How are they different? (at least three for each) Thanks for your help.

1.Consider a negative point charge. Sketch electric field lines, including their direction. 2 Calculate electric field...

1.Consider a negative point charge. Sketch electric field lines, including their direction. 2 Calculate electric field of 1 electron at a distance of 0.1 nanometer away from it. Express your answer in SI units. 3 Consider a point charge of 1 C and calculate its electric field at a distance of 1 m.

Which of the following statements about correlation are true?

4. Correlation basics Which of the following statements about correlation are true? Check all that apply Correlation is a numerical value between 1.1 and 2. The sign of the correlation indicates the strength or consistency of the linear relationship between two variables. A negative correlation means that two variables tend to change in opposite directions The correlation indicates the strength and the direction of the linear relationship between two variables If the correlation between two variables is 0, there is no clear linear relationship between the...