In an Alternating Current (AC) circuit, the phase relationship between current and voltage depends on the circuit elements. Match the entries in Column-I with the appropriate relations in Column-II. Column-I: i. Pure Resistance (R) ii. Pure Capacitance (C) iii. Pure Inductance (L) iv. R-L-C Series Circuit. Column-II: p. Current leads voltage by 90° q. Current and voltage are in same phase r. Current and voltage may or may not be in same phase s. Current lags voltage by 90°. Select the correct matching option.

Two conducting wires of the same material and of equal lengths and equal diameters are first connected in parallel and then in series in a circuit across the same potential difference. The ratio of h…

Two resistors R1 and R2, arranged in parallel combination in an electrical closed circuit are made of the same material and of same thickness. If the length of R2 is twice the length of R1, then the…

Which of the following statements are correct about the electrical resistance and resistivity of a wire? 1. Both quantities depend on the area of cross-section of the wire 2. Both depend on the tempe…

In an electric circuit, a wire of resistance 10 Ω is used. If this wire is stretched to a length double of its original value, the current in the circuit would become :

An incandescent electric bulb converts 20% of its power consumption into light, and the remaining power is dissipated as heat. The bulb's filament has a resistance of 200 Ω and 2 A current flows thro…