The following circuit consist of a $5\mathrm{\mu }F$ capacitor, having charge $50\mathrm{\mu }C$ as shown. The switch is closed at $t=0.$ The value of current in $2 M\Omega$ resistor at $t=0$ is

There are a large number of cells available, each marked $(6 \mathrm{V}, 0.5 \mathrm{\Omega })$ to be used to supply current to a device of resistance $0.75 \mathrm{\Omega },$ requiring $24$ Acurrent. How should the cells be arranged, so that power is transmitted to the load using minimum number of cells?

Potential difference across $AB$ in the network shown is

Current through $10 \mathrm{\Omega }$ resistor shown in figure is

Three identical cells are connected in parallel across $AB.$ Net emf across $AB$ is

When current supplied by a cell to a circuit is $0.3 \mathrm{A},$ its terminal potential difference is $0.9 \mathrm{V}.$ When the current supplied becomes $0.25 \mathrm{A},$ its terminal potential difference becomes $1.0 \mathrm{V}.$ The internal resistance of the cell is

Current $I$ in the network shown in figure is

Value of the resistance $R$ in the figure is

Current through the $25 \mathrm{\Omega }$ resistor as shown in figure is