Two inductors `L_1` and `L_2` sufficient distance apart connected (i) in series (ii) in parallel. What is their equivalent inductance?

Three identical resistors are first connected in series and then in parallel find the ratio of the equivalent resistance in two cases ​

A capacitor of 100 muF , a resistor of 20 Omega and an inductor of inductance L are connected in series with an a.c. source of frequency 50 Hz. Calculate the value of inductance L of the inductor, if phase angle between current and voltage is zero.

Two metallic wires of the same material B, have the same length out cross-sectional area is in the ratio 1:2. They are connected (i) in series and (ii) in parallel. Compare the drift velocities of electrons in the two wires in both the cases (i) and (ii) .

Two pure inductors each of self-inductance L are connected in parallel but are well separated form each other. Then, the total inductance is

If fig. l_1||l_2 what is the value of x

Three capacitors C_1, C_2, C_3 are Connected in series. Derive an expression for the equivalent capacitance.