द्रव्यमान m और आवेश q का एक आवेशित कण X-अक्ष के अनुदिश वेग V0 से गति कर रहा है। जब यह मूल बिंदु से गुजरता है, तो यह एक एकसमान विद्युत क्षेत्र E⃗ = -E ĵ वाले क्षेत्र में प्रवेश करता है जो x = d तक फैला हुआ है। क्षेत्र x > d में कण के पथ का समीकरण है:

Which of the following statements are correct regarding electrostatic properties of conductors? A. Inside a conductor, the electrostatic field is zero. B. Electric field at the surface of a charged conductor does not depend on its surface charge density. C. The interior of a charged conductor can have no excess charge in static conditions. D. At the surface of a charged conductor, the electrostatic field must be normal to the surface at every point. E. The electrostatic potential is zero everywhere inside a charged conductor. Choose the correct answer:

What type of electric charge is acquired by a glass rod when it is rubbed with a silk cloth?