Aim To study the variation in potential drop with length of a wire for a steady current. Apparatus and Material Required Principle If a steady current is flowing through a wire with uniform cross section and constant resistance per unit length, potential drop \(V\) across two points of the wire is directly proportional to the length…
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Concave Mirror Experiment Viva Questions – Finding Image Distance and Focal Length Concave Mirror – Viva Questions A. Basic Concepts Q1. What is a concave mirror? Answer: A concave mirror has an inwardly curved reflecting surface; therefore, it converges light rays. Q2. What types of images does a concave mirror form? Answer: A concave mirror…
\(\vec a = x \hat i + y \hat j + z \hat k\) \(\vec a = x \hat i + y \hat j \) \(x \hat i + y \hat j \) \(x \hat i + y \hat j + z \hat k\) dot product \(\vec a \cdot \vec b\) cross product \(\vec a…
Aim To determine resistivity of two wires by plotting a graph for potential difference versus current. Apparatus and Material Required Principle According to Ohm’s Law, the current passing through a conductor is directly proportional to the voltage applied across it, as long as the conductor’s temperature and other physical properties remain constant. If I be the…