The fuse current (I) is proportional to the square root of the cross-sectional area. Since area is proportional to the square of the radius, doubling the radius increases I by √4 = 2, giving = 5 × 2¹.5 = 14.7 ...
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Resistance of a wire is given by R = ρ L/A . When stretched, L ′ = 1.5L and = A/(1.5)², so new resistance: R ′ = ρ 1.5L/A/(1.5)² = 2.25R To make R′ = 4R, solving gives fraction 1/6. ...
The role of a Sarpanch is an important topic in Class 6 Social Science Chapter 10: Grassroots Democracy – Part 1: Governance. The Sarpanch is the elected head of the Gram Panchayat and is responsible for implementing government policies at ...
In Class 6 Social Science Chapter 10: Grassroots Democracy – Part 1: Governance, students learn about the importance of local self-governance in India. The chapter explains how Panchayati Raj institutions empower people at the village level. Multiple-choice questions from this ...
Education and learning have always been at the core of India’s cultural development. Class 6 Social Science Chapter 7: India’s Cultural Roots discusses the ancient universities of Nalanda and Takshashila, where scholars from across the world gathered to study subjects ...