Two charges Q1 and Q2 are a distance d apart.If the electric field is zero at a distance of 3d/4 from Q1 (towards Q2),then what is the relation between Q1 and Q2?

A) Q1 = Q2 /9 B) Q1 = 9Q2 C) Q1 = Q2 /3 D) Q1 = 3Q2 E) Q1 = 4Q2 /3 A) Q1 = Q2 /9 B) Q1 = 9Q2 C) Q1 = Q2 /3 D) Q1 = 3Q2 E) Q1 = 4Q2 /3

Exam 21: The Electric Field I: Discrete Charge Distributions

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An electron is released from rest in a uniform electric field.If the electric field is 1.25 kN/C,at the end of 20 ns the electron's velocity will be approximately

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Question 41

An electron is released from rest in a uniform electric field.If the electric field is 3.65 kN/C,at the end of 15 ns the electron's velocity will be approximately

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Question 42

How many electrons must be transferred to a body to produce a charge of 125 nC?

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Question 43

Three charges are located at 100-m intervals along a horizontal line: a charge of -3.0 C on the left,2.0 C in the middle,and 1.0 C on the right.What is the electric field on the horizontal line halfway between the -3.0 C and 2.0 C charges?

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Question 44

An electron (q =+e)and a positron (q = +e)can combine to give off two gamma rays.The net change in the algebraic sum of the charges is

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Question 45

Use the picture for the next problem. A negatively charged particle moving with speed v enters a region of uniform electric field E. -Using the direction compass on the right,the direction of the force on the charge is

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Question 46

A particular nucleus of the element plutonium contains 94 protons and 150 neutrons.What is the magnitude of the force from the nucleus on a single electron that is at a distance of 0.563 $\times$ 10^-12 m from the plutonium nucleus?

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Question 47

Two electrons are separated by a distance of 1.6 nm.Each experiences an electrostatic force of approximately

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Question 48

Experimental evidence indicates that

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Question 49

Two point charges of unknown magnitude and sign are a distance d apart.If the electric field strength is zero at a point between them on the line joining them,you can conclude that

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Question 50

Charges q₁ and q₂ exert repulsive forces of 15 N on each other.What is the repulsive force when their separation is increased so that their final separation is 160% of their initial separation?

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Question 51

The SI units of electric fields can be expressed as

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Question 52

A proton is moving horizontally north in an electric field that points vertically upward.The electric force on the proton is

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Question 53

Two small spheres attract one another electrostatically.This can occur for a variety of reasons.Which of the following statements must be true?

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Question 54

Two charges Q₁ and Q₂ are a distance d apart.If the electric field is zero at a distance of 3d/4 from Q₁ (towards Q₂),then what is the relation between Q₁ and Q₂?

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Question 55

Showing 41 - 55 of 55

Exam 21: The Electric Field I: Discrete Charge Distributions

An electron is released from rest in a uniform electric field.If the electric field is 1.25 kN/C,at the end of 20 ns the electron's velocity will be approximately

An electron is released from rest in a uniform electric field.If the electric field is 3.65 kN/C,at the end of 15 ns the electron's velocity will be approximately

How many electrons must be transferred to a body to produce a charge of 125 nC?

Three charges are located at 100-m intervals along a horizontal line: a charge of -3.0 C on the left,2.0 C in the middle,and 1.0 C on the right.What is the electric field on the horizontal line halfway between the -3.0 C and 2.0 C charges?

An electron (q =+e)and a positron (q = +e)can combine to give off two gamma rays.The net change in the algebraic sum of the charges is

Use the picture for the next problem. A negatively charged particle moving with speed v enters a region of uniform electric field E. -Using the direction compass on the right,the direction of the force on the charge is

A particular nucleus of the element plutonium contains 94 protons and 150 neutrons.What is the magnitude of the force from the nucleus on a single electron that is at a distance of 0.563 ×\times× 10-12 m from the plutonium nucleus?

Two electrons are separated by a distance of 1.6 nm.Each experiences an electrostatic force of approximately

Experimental evidence indicates that

Two point charges of unknown magnitude and sign are a distance d apart.If the electric field strength is zero at a point between them on the line joining them,you can conclude that

Charges q1 and q2 exert repulsive forces of 15 N on each other.What is the repulsive force when their separation is increased so that their final separation is 160% of their initial separation?

The SI units of electric fields can be expressed as

A proton is moving horizontally north in an electric field that points vertically upward.The electric force on the proton is

Two small spheres attract one another electrostatically.This can occur for a variety of reasons.Which of the following statements must be true?

Two charges Q1 and Q2 are a distance d apart.If the electric field is zero at a distance of 3d/4 from Q1 (towards Q2),then what is the relation between Q1 and Q2?

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A particular nucleus of the element plutonium contains 94 protons and 150 neutrons.What is the magnitude of the force from the nucleus on a single electron that is at a distance of 0.563 $\times$ 10^-12 m from the plutonium nucleus?

Charges q₁ and q₂ exert repulsive forces of 15 N on each other.What is the repulsive force when their separation is increased so that their final separation is 160% of their initial separation?

Two charges Q₁ and Q₂ are a distance d apart.If the electric field is zero at a distance of 3d/4 from Q₁ (towards Q₂),then what is the relation between Q₁ and Q₂?