A comb has a net charge of +3 C and a bit of paper has a...
A comb has a net charge of +3 C and a bit of paper has a net charge of 0. What is the electric force between them? (a) no force (b) tangential (c) repulsive (d) attractive
Homework Answers
The correct answer is (a) no force because the formula for electric force is F= k (q1,q2)/ r2. So here q1=3C but q2=0 C so there product will be zero and this will leads to zero answer since one the charges is zero hence no force .
A and B 1 An electric charge is placed near an object whose net charge is...
A and B
1 An electric charge is placed near an object whose net charge is zero. Points5) If the object is made of metal, does the charge exert a force on the object? If so, is it attractive or repulsive? If the object is made of plastic, does the charge exert a force on the object? If so, is it attractive or repulsive? a. Attractive b. Attractive
12) a) A 0.030 kg plastic comb acquires a charge (electrons) of about (-1.0x10-8 C) when...
12) a) A 0.030 kg plastic comb acquires a charge (electrons) of about (-1.0x10-8 C) when passed through your hair. What is the magnitude of the electric force between two such combs held 0.5 m apart after being passed through your hair? (Hint: See Example 3 in Lecture 1B on Blackboard). b) If two identical 0.030 kg comb carry one surplus electron for every 1011 electrons in each comb, what is the magnitude of the electric force between these combs...
PLEASE HELP THX U A positive charge is placed in an electric field. It starts at...
PLEASE HELP THX U
A positive charge is placed in an electric field. It starts at rest but is free to move. What does the test charge do? It stays at rest. It moves towards the nearest negative charge only (if there is one). It moves along electric field lines in the opposite direction the arrows point It feels a force pointing tangent to the field lines and moves according to the force. Three charges, -9, +q, and -2q are...
4. The Earth is not neutral. It has a charge of roughly −6.76 × 105 C,...
4. The Earth is not neutral. It has a charge of roughly −6.76 × 105 C, which is roughly uniformly distributed over the Earth. (a) How large is the force that the Earth exerts on an electron near its surface? Is this force attractive or repulsive? Compare this force with the gravitational force that the Earth exerts on the electron. (b) Suppose we wanted to levitate a paper clip using the electric force that the Earth exerts on it. The...
4. The Earth is not neutral. It has a charge of roughly -6.76 x 105 C,...
4. The Earth is not neutral. It has a charge of roughly -6.76 x 105 C, which is roughly uniformly distributed over the Earth. (a) How large is the force that the Eartlh exerts on an electron near its surface? Is this force attractive or repulsive? Compare this force with the gravitational force that the Earth exerts on the electron. (b) Suppose we wanted to levitate a paper clip using the electric force that the Earth exerts on it. The...
If two positively charged particle with the same charge are travelling parallel to each other in...
If two positively charged particle with the same charge are travelling parallel to each other in the same direction and at the same speed, what kind of magnetic force will occur between them A. Depends on the size of the particle B. A repulsive force will be established for both of the particles C. The net force would be zero D. The magnetic force between them would be attractive
To understand the electric force between charged and uncharged conductors and insulators. When a test charge...
To understand the electric force between charged and uncharged conductors and insulators. When a test charge is brought near a charged object, we know from Coulomb's law that it will experience a net force (either attractive or repulsive, depending on the nature of the object's charge). A test charge may also experience an electric force when brought near a neutral object. Any attraction of a neutral insulator or neutral conductor to a test charge must occur through induced polarization. In...
(Figure 1) Consider three plastic balls (A, B, and C), each carrying a uniformly distributed charge...
(Figure 1) Consider three plastic balls (A, B, and C), each
carrying a uniformly distributed charge equal to either +Q, -Q or
zero, and an uncharged (neutral) copper ball (D). A positive test
charge (T) experiences the forces shown in the figure when brought
very near to the individual balls. The test charge T is strongly
attracted to A, strongly repelled from B, weakly attracted to C,
and strongly attracted to D.
What is the nature of the force between...
4. Two charged spheres are on a friction-less horizontal surface. One has a charge of +3.0x...
4. Two charged spheres are on a friction-less horizontal surface. One has a charge of +3.0x 10-6 C Make the the other a +6.0x 10-6 C charge. Sketch the two spheres, showing all forces on them. length of your force arrows proportional to the strength of the forces Two positive charges of 6.0 x 10-6 C are separated by 0.50 m. Draw a force diagram for each of the charges, considering only electrostatic forces. the charges? Is this force repulsive...
A and B
1 An electric charge is placed near an object whose net charge is zero. Points5) If the object is made of metal, does the charge exert a force on the object? If so, is it attractive or repulsive? If the object is made of plastic, does the charge exert a force on the object? If so, is it attractive or repulsive? a. Attractive b. Attractive
12) a) A 0.030 kg plastic comb acquires a charge (electrons) of about (-1.0x10-8 C) when passed through your hair. What is the magnitude of the electric force between two such combs held 0.5 m apart after being passed through your hair? (Hint: See Example 3 in Lecture 1B on Blackboard). b) If two identical 0.030 kg comb carry one surplus electron for every 1011 electrons in each comb, what is the magnitude of the electric force between these combs...
PLEASE HELP THX U
A positive charge is placed in an electric field. It starts at rest but is free to move. What does the test charge do? It stays at rest. It moves towards the nearest negative charge only (if there is one). It moves along electric field lines in the opposite direction the arrows point It feels a force pointing tangent to the field lines and moves according to the force. Three charges, -9, +q, and -2q are...
4. The Earth is not neutral. It has a charge of roughly -6.76 x 105 C, which is roughly uniformly distributed over the Earth. (a) How large is the force that the Eartlh exerts on an electron near its surface? Is this force attractive or repulsive? Compare this force with the gravitational force that the Earth exerts on the electron. (b) Suppose we wanted to levitate a paper clip using the electric force that the Earth exerts on it. The...
To understand the electric force between charged and uncharged conductors and insulators. When a test charge is brought near a charged object, we know from Coulomb's law that it will experience a net force (either attractive or repulsive, depending on the nature of the object's charge). A test charge may also experience an electric force when brought near a neutral object. Any attraction of a neutral insulator or neutral conductor to a test charge must occur through induced polarization. In...
(Figure 1) Consider three plastic balls (A, B, and C), each
carrying a uniformly distributed charge equal to either +Q, -Q or
zero, and an uncharged (neutral) copper ball (D). A positive test
charge (T) experiences the forces shown in the figure when brought
very near to the individual balls. The test charge T is strongly
attracted to A, strongly repelled from B, weakly attracted to C,
and strongly attracted to D.
What is the nature of the force between...
4. Two charged spheres are on a friction-less horizontal surface. One has a charge of +3.0x 10-6 C Make the the other a +6.0x 10-6 C charge. Sketch the two spheres, showing all forces on them. length of your force arrows proportional to the strength of the forces Two positive charges of 6.0 x 10-6 C are separated by 0.50 m. Draw a force diagram for each of the charges, considering only electrostatic forces. the charges? Is this force repulsive...
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