In the given circuit, if the cell delivers maximum power to the circuit, then value of $R$ is
The figure shows a part of a circuit. The voltage across A and B is 4V. Then the voltages across 2 $\mu$F and 1.5 $\mu$F are respectively
In the given circuit, the potential difference between B and D is zero. Then the value of the current I is
If $ P(2, 3) $ and $ Q(-1, 2) $ are conjugate points with respect to the circle $ x^2 + y^2 + 2gx + 3y - 2 = 0 $ then the radius of the circle is