CBSE Class 12 Half Yearly Sample Papers 2025: For the academic year 2025–2026, the Central Board of Secondary Education (CBSE) half yearly all subject sample papers, solutions and marking schemes from ...

Q1. A uniform electric field pointing in the positive X-direction exists in a region. Let A be the origin, B be the point on the X-axis at x = +1 cm, and C be the point on the Y-axis at y = +1 cm.