Red blood cells often become charged and can be treated as point charges. Healthy red blood cells are negatively charged, but unhealthy cells (due to the presence of a bacteria, for example) can become positively charged. In the figure, three red blood cells are oriented such that they are located on the corners of an equilateral triangle. The red blood cell charges are  A = 2.10 pC, B = 6.90 pC, and C = −3.80 pC. Given these charges, what would the magnitude and direction of the electric field be at cell A? (1 pC = 1 ✕ 10−12 C.) magnitude: __ N/C direction: __ degrees counterclockwise from the +x-axis If the charge of cell A were doubled, how would the electric field at cell A change? The field would be unchanged. The magnitude of the field would be halved.     The magnitude of the field would be doubled. The magnitude of the field would be quadrupled.

Q: In the future people will only enjoy one sport: Electrodisc. In this sport you gain points when you…

A: Initial charge on disk A = -8 μC Initial charge on disk B = -2 μC Initial charge on disk C = 5 μC…

Q: Two identical small conducting spheres are separated by 0.60 m. The spheres carry different amounts…

A: Given thatSeperation between the charges=0.60mThe total charge on sphere=Electric force (F)=10.8NTo…

Q: The following figure shows two conducting spheres that have been charged and whose centers are…

A: The given data are listed below with appropriate variables. Here, qA denotes the charge on sphere…

Q: A particle with a charge 6 μCμC is placed at the origin. An identical particle, with the same…

A: Given: The charge is 6 μC. The position of the second charge is 7 m from the origin on the x-axis.…

Q: A typhoon is moving at 55 kilometers per hour (km/h) in the direction 40° south of east. Find the…

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Q: Consider the group of charges in this figure. All three charges have Q=5.9nC. What is their electric…

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Q: Three 2.50 µC charges are placed on tiny conducting spheres at the ends of 1.00 m-long strings that…

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Q: How many excess electrons does it have

A: Given: Total excess charge on an object is q=-1.92×10-17 C Find: Number of electrons which causes…

Q: The coordinate of charges q1q2 and q3 are given by (x1=20,y1=0,z1=27), (x2=26,y2=0,z2=−14) and…

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Q: In the figure below, each charged particle is located at one of the four vertices of a square with…

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Q: Concern an electric dipole in an electric field. Clinical studies suggest that an oscillating…

A: Force on positive side is in the direction of field while force on negative side will be opposite to…

Q: A bacterium has 5.2 × 1016 protons and a net charge of 2.1 pC. Part (a)  How many fewer electrons…

A: Given: no. of protons, np= 5.2 × 1016 net charge = 2.1pC=2.1 ×10-12 C To find: a)  How many fewer…

Q: (a) Red blood cells often become charged and can be treated as point charges. Healthy red blood…

A: (a) Electric Field=487427.164 Angle=334.625   (B) (C )The field would be unchanged

Q: Match the description to the charge magnitude. A neutral atom of Oxygen (8 protons & 8 electrons)…

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Q: Two point charges of 7.5 μC were placed 25 mm from one another. What is the magnitude and direction…

A: Given Two point charges are given as q1=q2=7.5 μC=7.5×10-6 C Separation between the two charges is…

Q: The drawings show three charges that have the same magnitude but different signs. In all cases the…

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Q: Consider the following figure. (The four charges are at the corners of a square. Take q = 1.01 µC…

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Q: Two electrostatic point charges of +54.0 µC and +51.0 µC exert a repulsive force on each other of…

A: The force existing between two charged object is described by Coulomb's law. Which states that the…

Q: Two metallic spheres of radii 1 cm and 3 cm are given charges of -10 mC and 50 mC respectively. If…

A: Let r1 =  1 cm = 0.01 m r2 = 3 cm =0.03 m Charge on sphere 1 is  Q1= - 10 mc charge on sphere 2 is…

Q: Two charges are located on the x axis: q₁ = +5.9 µC at x₁ = +3.4 cm, and q2 = +5.9 µC at x2 = -3.4…

A: Given:-  Two charges located at the x-axis as  Charge q1= 5.9 μC at x1= 3.4 cm  charge q2=5.9μC at…

Q: Two positive charges, each of magnitude 6 uC, are on the y-axis at points y = 3 m and y = -3 m.…

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Q: If electrons are negatively charged and the nucleus is positively charged, why do they not attract…

A: Electrons revolve around the positively charged nucleus in circular orbit .

Q: Two point charges are 28 cm apart and have charges of 12 μC and -12μC. What is the electric field…

A: Q1=12uC Q2=-12uC r=14cm=0.14m We need to find The electric field

Q: Electrons have a charge of q = -1.602 × 10-19 C. A student observes that a Styrofoam cup has a total…

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Q: If two point charges are separated by 1.5 cm and have charge values of 2 μC and – 4 μC, what is the…

A: Given r = 1.5cm q1 = 2μC = 2×10-6 Cq2 = -4μC = -4×10-6 C

Q: Two negative and two positive point charges (magnitude Q� = 4.88 mCmC ) are placed on opposite…

A: The objective of this question is to determine the magnitude and direction of the force on each…

Q: The drawings show three charges that have the same magnitude but may have different signs. In all…

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Q: a) What is the force of q2 on q1 in the x direction, Fx? Give your answer in newtons, and recall k =…

A: Given data: The first charge is: q1=4.6×10-16 C The second charge is: q2=-1.5×10-16 C The third…

Q: A small piece of aluminum (atomic number 13) contains 1015 atoms. (The atomic number is the number…

A: Given: number of atoms in a piece of aluminum N = 1015 atoms charge on each atom = 13*1.6*10-19 both…

Q: A red blood cell contains 5.2 x 10^7 free electrons. What is the total charge of these electrons in…

A: Given data:  Number of free electrons (n) = 5.2×107 Asked: The total charge (Q)

Q: A charge of −7 × 10−6 C is placed at a point in space where the electric field is directed toward…

A: charge = q =  7 x 10-6 C ( negative ) electric field = E = 6.4 X 105 N/C

Q: A 53.0 g ball of copper has a net charge of 2.1 µC. What fraction of the copper's electrons have…

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Q: Red blood cells can often be charged. Consider two red blood cells with the following charges: -16.4…

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Q: An electroscope has a charge of −3.1 µC while your finger has a charge of 3.7 µC. You touch the…

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Q: three-point charges (q1=30 nanocoulombs, q2= 6 nanocoulombs, q3= 4 naocoulombs) are spaced apart on…

A: Given charges, q1 = 30 nC  q2 = 6 nC  q3 = 4  nC

Q: An amoeba has 7.2 × 1016 protons and a net charge of 8.5 pC. Part (a)  How many fewer electrons are…

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Q: The force of electrostatic repulsion between two small positively charged objects, A and B, is 3.6 ×…

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Q: Red blood cells can often be charged. Consider two red blood cells with the following charges: -18.4…

A: Given : charges on red blood cells, q1 = - 18.4 pC = -18.4 × 10-12 C & q2 = 45.2 pC = 45.2 ×…

Q: As in the figure, three point charges are located at the corners of an equilateral triangle with a…

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Q: Consider the following. A 60.0 0.500 mm (a) Red blood cells often become charged and can be treated…

A: Solution:Given:The charge at point A is qA=1.80pCThe charge at point B is qB=7.10pCThe charge at…

Q: An electroscope has a charge of −4.0 µC while your finger has a charge of 4.6 µC. You touch the…

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Q: Two tiny conducting spheres are identical and carry charges of - 27.3 µC and + 48.8 µC. They are…

A: Given  Charge q1=-27.3 μC q2=48.8 μC distance r=0.0243 m

Q: odium chloride (NaCl) is an ionic compound. We can effectively model it as sodium atoms with one…

A: Given: The distance between two charge ion that is sodium and chlorine = 0.28 nm. Charge on sodium =…

Q: An outside force, Fo, brings two small metal spheres, A and B, at rest from a long distance away to…

A: Part (1) Given: The distance between two spheres is r=0.9 m. The mass of first sphere is mA=5.2 g.…

Q: Consider the arrangement of three point charges in a right triangle shown in the figure, which have…

A: Given data: The charge , q1=9.5μC The charge , q2=-69μC The charge ,  q3=25μC The distance between…

Q: Two positive charges are 2 cm apart. One has a charge of 10 µC the other 4 µC. What is the magnitude…

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Q: A 47.7 g ball of copper has a net charge of 2.1 µC. What fraction of the copper's electrons have…

A: Given value--- mass = 47.7 g. atomic mass = 63.5 g/mol. net charge = 2.1 micro C. We have to…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.