A 50 ohm galvanometer gets full scale deflection when a current of 0.01 A passes
A 50 ohm galvanometer gets full scale deflection when a current of 0.01 A passes through the coil. When it…
7 years ago
Current Electricity
A DC ammeter has resistance 0.1Ω and its current ranges 0-100A. If the range
A DC ammeter has resistance 0.1Ω and its current ranges 0-100A. If the range is to be extended to 1-500,…
7 years ago
A current of 5 A is passing through a metallic wire of cross-sectional area 4×10⁻⁶ m².
A current of 5 A is passing through a metallic wire of cross-sectional area 4x10⁻⁶ m². If the density of…
7 years ago
A 36 Ω galvanometer is shunted by resistance of 4 Ω. The percentage of the total current
A 36 Ω galvanometer is shunted by resistance of 4 Ω. The percentage of the total current, which passes through…
7 years ago
Three resistances 2Ω, 3Ω and 4Ω are connected in parallel. The ratio of currents passing
Three resistances 2Ω, 3Ω and 4Ω are connected in parallel. The ratio of currents passing through them when a potential…
7 years ago
A metal plate weighing 750g is to be electroplated with 0.05% of its weight of silver.
A metal plate weighing 750g is to be electroplated with 0.05% of its weight of silver. If a current of…
7 years ago
A 1Ω resistance in series with an ammeter is balanced by 75 cm of potentiometer wire
A 1Ω resistance in series with an ammeter is balanced by 75 cm of potentiometer wire. A standard cell of…
7 years ago
A certain current on passing through a galvanometer produces a deflection
A certain current on passing through a galvanometer produces a deflection of 100 divisions. When a shunt of one ohm…
7 years ago
A 1m long wire of diameter 0.31 mm has a resistance of 4.2Ω. If it is replaced by
A 1m long wire of diameter 0.31 mm has a resistance of 4.2Ω. If it is replaced by another wire…
7 years ago
6Ω and 12Ω resistors are connected in parallel. This combination is connected
6Ω and 12Ω resistors are connected in parallel. This combination is connected in series with a 10 V battery and…
7 years ago