density d
A cylindrical conductor has length l and area of cross section A. Its conductivity changes with distance (x) from one of its ends as σ=σ0lx.[σ0is a constant]. Calculate electric field inside the conductor as a function of x, when a cell of emf V is connected across the ends.
02
Sep
A cylindrical conductor has length l and area of cross section A. Its conductivity changes with distance (x) from one of its ends as σ=σ0lx.[σ0is a constant]. Calculate electric field inside the conductor as a function of x, when a cell of emf V is connected across the ends. A wire of mass m length [...]
A uniform copper wire of mass 2.23× 10^−3 kg carries a current of 1 A when 1.7 V is applied across it. Calculate its length and area of cross-section. If the wire is uniformly stretched to double its length, calculate the new resistance. Density of copper is 8.92 × 103 kgm^−3 and resistivity is 1.7×10^−8Ω m.
02
Sep
A uniform copper wire of mass 2.23× 10^−3 kg carries a current of 1 A when 1.7 V is applied across it. Calculate its length and area of cross-section. If the wire is uniformly stretched to double its length, calculate the new resistance. Density of copper is 8.92 × 103 kgm^−3 and resistivity is 1.7×10^−8Ω [...]
A wire of mass m length I, density d, and area of cross section A is stretched in such a way that is length increases by 10% of its original value, Express the changed resistance in percentage.
02
Sep
A wire of mass m length I, density d, and area of cross section A is stretched in such a way that is length increases by 10% of its original value, Express the changed resistance in percentage. A wire of mass m length I and area of cross section A is stretched in such a [...]