تحميل مراجعه نهائية وحدة المجالات الكهربائية فيزياء للصف ثاني عشر الفصل الدراسي الاول المنهج الاماراتي 2025-1446 pdf؟ او تنزيل مراجعه وحدة المجالات الكهربائية الفيزياء الثاني عشر فصل اول الامارات، عرض وتحميل على منصة كتابك المدرسي.
محتوى وحدة المجالات الكهربائية الصف ثاني عشر متقدم فصل اول امارات
A negative point charge is placed inside a spherical Gaussian surface as shown. Find the magnitude of the electric flux through this sphere.
No electrostatic force will act on either charge. The electrostatic force on charge B will be greater than the force on charge A. The electrostatic force on charge A will be greater than the force on charge B. The electrostatic force on charge B will be equal to the force charge A.
Tow charges are placed on the y-axis. One has a charge of (+e) and is located at the origin, the other has a charge of (-4e) and is located at y = +r, where r > 0 . Where on the y-axis is the net electric field equal to zero?
A negative charge that has an excess of 45 electrons is placed between two oppositely charged parallel plates. The negative charge is suspended in the air when an electric field of magnitude 5 * 10 ^ 4 * N / C is created between the plates. What is the mass of this charge?
A solid insulating sphere has a positive charge, 2.0 µc, uniformly distributed throughout its volume. The sphere has a radius of R = 4 cm. What is the magnitude of the electric field at a distance of r = 2 cm from the center of the sphere?
What is the magnitude of the electric flux through the sphere shown in the fiqure that contains an electron and tow protons?
A 5.0 g charged particle is attached to a 2.0 m wire as shown. The particle has a charge of 12 µC and reaches equilibrium at an angle of 20°. What is the magnitude of the electric field needed to balance this charge? تم توصيل جسيم مشحون كتلته 5.0 بسلك طوله 2.0 ، كما هو موضح. الجسيم لديه شحنة 12 وتصل إلى التوازن بزاوية 20. ما مقدار المجال الكهربائي اللازم لموازنة هذه الشحنة؟
The strength of the electric field is measured two times from a point charge of magnitude 3.5 nC. In the first measurement, the detector was 2.0 cm away from the charge. In the second measurement, the detector was 4.0 cm away from the charge. What is the relationship between the strength of the electric field found in the two measurements?
Suppose that a positive charge of magnitude 4 * 10 ^ - 18 * C is projected to the right through a uniform electric field. The electric field vector is directed to the left and has a magnitude of 5 * 10 ^ 4 * N / C . The positive charge covers a distance of 14 cm before coming to rest. What is the initial speed of this positive charge? Suppose that the mass of the positive charge is 4.2 * 10 ^ - 26 kg.
