Two neutral insulating small sphere

5. Two neutral insulating small spheres are rubbed against each other and are then kept 4 m apart. If they attract each other with a force of 3.6 N, then (i) calculate the charge on each sphere, and (ii) calculate the number of electrons transferred from one sphere to the other during rubbing. ' m') is placed: line joining th 6. Two equal point charges Q = + 2 ​ μ C are placed at each of the two opposite comers of a square and equal point charges q at each of the other two comers. What must be the value of q so that the resultant force on Q is zero? 7. In the given figure three point charges are situated at the comers of an equilateral triangle of side 10 cm. Calculate the resultant force on the charge at B. What is its direction? 8. Two positively charged particles, each of mass 1.7 × 1 0 − 27 kg and carrying a charge of 1.6 × 1 0 − 19 C are placed at a distance d apart. If each experiences a repulsive force equal to its weight, find the value of d. 9. ABC is a right angled triangle. Calculate the magnitude of force on charge − Q. Views: 5,253 1 C charge placed at tie cingring 9. (i) A charge q 0 ​ is placed at the centre of a regular pentagon having equal cha (ii) If charge of one of the corners is removed then find out magnitude of force acting on q 0 ​ ? (iii) If two adjacent charges are removed from corners then find out magnitude of force acting on q 0 ​ ? 10. Two particles A and B, each having a charge Q are fixed a distance d apart. Where should a particle of charg...

11 Magnetic Forces and Fields • Introduction • 11.1 Magnetism and Its Historical Discoveries • 11.2 Magnetic Fields and Lines • 11.3 Motion of a Charged Particle in a Magnetic Field • 11.4 Magnetic Force on a Current-Carrying Conductor • 11.5 Force and Torque on a Current Loop • 11.6 The Hall Effect • 11.7 Applications of Magnetic Forces and Fields • Learning Objectives By the end of this section, you will be able to: • Explain what a conductor is • Explain what an insulator is • List the differences and similarities between conductors and insulators • Describe the process of charging by induction In the preceding section, we said that scientists were able to create electric charge only on nonmetallic materials and never on metals. To understand why this is the case, you have to understand more about the nature and structure of atoms. In this section, we discuss how and why electric charges do—or do not—move through materials ( Figure 5.9 This power adapter uses metal wires and connectors to conduct electricity from the wall socket to a laptop computer. The conducting wires allow electrons to move freely through the cables, which are shielded by rubber and plastic. These materials act as insulators that don’t allow electric charge to escape outward. (credit: modification of work by “Evan-Amos”/Wikimedia Commons) Conductors and Insulators As discussed in the previous section, electrons surround the tiny nucleus in the form of a (comparatively) vast cloud of negati...

1 Introduction: The Nature of Science and Physics • Introduction to Science and the Realm of Physics, Physical Quantities, and Units • 1.1 Physics: An Introduction • 1.2 Physical Quantities and Units • 1.3 Accuracy, Precision, and Significant Figures • 1.4 Approximation • Glossary • Section Summary • Conceptual Questions • Problems & Exercises • 2 Kinematics • Introduction to One-Dimensional Kinematics • 2.1 Displacement • 2.2 Vectors, Scalars, and Coordinate Systems • 2.3 Time, Velocity, and Speed • 2.4 Acceleration • 2.5 Motion Equations for Constant Acceleration in One Dimension • 2.6 Problem-Solving Basics for One-Dimensional Kinematics • 2.7 Falling Objects • 2.8 Graphical Analysis of One-Dimensional Motion • Glossary • Section Summary • Conceptual Questions • Problems & Exercises • 3 Two-Dimensional Kinematics • Introduction to Two-Dimensional Kinematics • 3.1 Kinematics in Two Dimensions: An Introduction • 3.2 Vector Addition and Subtraction: Graphical Methods • 3.3 Vector Addition and Subtraction: Analytical Methods • 3.4 Projectile Motion • 3.5 Addition of Velocities • Glossary • Section Summary • Conceptual Questions • Problems & Exercises • 4 Dynamics: Force and Newton's Laws of Motion • Introduction to Dynamics: Newton’s Laws of Motion • 4.1 Development of Force Concept • 4.2 Newton’s First Law of Motion: Inertia • 4.3 Newton’s Second Law of Motion: Concept of a System • 4.4 Newton’s Third Law of Motion: Symmetry in Forces • 4.5 Normal, Tension, and Other Examp...

This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer See Answer See Answer done loading Question:Two neutral conducting spheres, A and B, are supported by insulating stands. The spheres are touching each other, and a particle (for example, a pith ball) with a positive +Q charge is brought near sphere A as shown. 1. Is there a net force on the particle with the +Q charge at this time? Explain. B Without touching the metal spheres, the person holding the Two neutral conducting spheres, A and B, are supported by insulating stands. The spheres are touching each other, and a particle (for example, a pith ball) with a positive +Q charge is brought near sphere A as shown. 1. Is there a net force on the particle with the +Q charge at this time? Explain. B Without touching the metal spheres, the person holding the base of sphere B now pulls it 4 centimeters to the right. FIGURE 2.2 2. Is there a net charge on sphere A? Explain. 3. When sphere B is moved, does the net force on particle +Q increase, decrease, or remain the same? Explain. Previous question Next question

12 Thermodynamics • Introduction • 12.1 Zeroth Law of Thermodynamics: Thermal Equilibrium • 12.2 First law of Thermodynamics: Thermal Energy and Work • 12.3 Second Law of Thermodynamics: Entropy • 12.4 Applications of Thermodynamics: Heat Engines, Heat Pumps, and Refrigerators • Key Terms • Section Summary • Key Equations • 22 The Atom • Introduction • 22.1 The Structure of the Atom • 22.2 Nuclear Forces and Radioactivity • 22.3 Half Life and Radiometric Dating • 22.4 Nuclear Fission and Fusion • 22.5 Medical Applications of Radioactivity: Diagnostic Imaging and Radiation • Key Terms • Section Summary • Key Equations • By the end of this section, you will be able to do the following: • Describe positive and negative electric charges • Use conservation of charge to calculate quantities of charge transferred between objects • Characterize materials as conductors or insulators based on their electrical properties • Describe electric polarization and charging by induction Teacher Support The learning objectives in this section will help your students master the following standards • (5) The student knows the nature of forces in the physical world. The student is expected to: • (C) describe and calculate how the magnitude of the electrical force between two objects depends on their charges and the distance between them; and • (E) characterize materials as conductors or insulators based on their electrical properties. In addition, the High School Physics Laboratory Manual addres...