A cell of emf E and internal resistance r supplies current for the same time
A cell of emf E and internal resistance r supplies current for the same time t through external resistance R₁…
6 years ago
Current Electricity
A galvanometer of 50 Ω resistance has 25 divisions. A current of 4×10⁻⁴ A gives
A galvanometer of 50 Ω resistance has 25 divisions. A current of 4x10⁻⁴ A gives a deflection of one division.…
6 years ago
A carbon film resistor has colour code green, black, violet, gold. The value
A carbon film resistor has colour code green, black, violet, gold. The value of the resistor is Options (a) 50Ω…
6 years ago
A cell can be balanced against 110 cm and 100 cm of potentiometer wire, respectively
A cell can be balanced against 110 cm and 100 cm of potentiometer wire, respectively with and being short circuited…
6 years ago
24 cells of emf 1.5 V each having internal resistance of 1 ohm are connected
24 cells of emf 1.5 V each having internal resistance of 1 ohm are connected to an external resistance of…
6 years ago
A thin wire of resistance 4 ohm is bent to form a circle. The resistance across
A thin wire of resistance 4 ohm is bent to form a circle. The resistance across any diameter is Options…
7 years ago
The resistance of a wire is 5 ohm at 50° C and 6 ohm at 100° C. The resistance
The resistance of a wire is 5 ohm at 50° C and 6 ohm at 100° C. The resistance of…
7 years ago
The fluctuation in the input voltage of 200 V to a domestic circuit is +10V
The fluctuation in the input voltage of 200 V to a domestic circuit is +10 V. The power fluctuation will…
7 years ago
In a circuit, 5% of total current passes through a galvanometer. If resistance
In a circuit, 5% of total current passes through a galvanometer. If resistance of the galvanometer is G, the value…
7 years ago
Three cells, each of e.m.f 1.5 V and internal resistance 1 ohm are connected in parallel
Three cells, each of e.m.f 1.5 V and internal resistance 1 ohm are connected in parallel. What would be the…
7 years ago