Karnataka PUC II Current Electricity — practice questions
16 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Karnataka PUC II Current Electricity in the app →Ohm's law for a conductor states that, at a given temperature,The SI unit of resistance isThe resistance R of a uniform conductor of length l and cross-section A made of material with resistivity ρ isThe emf (electromotive force) of a cell isThe reciprocal of resistivity ρ is calledTwo cells of emfs ε₁ and ε₂ with internal resistances r₁ and r₂ are connected in SERIES (positive of one to neA cell of emf ε = 6 V and internal resistance r = 1 Ω drives a current through an external resistance R = 5 Ω.In the relation between current density j and electric field E inside an ohmic conductor,Two identical resistors each of resistance R are connected in parallel. The equivalent resistance isKirchhoff's junction (or current) rule is a statement ofKirchhoff's loop (or voltage) rule is a statement ofA 12 V battery with internal resistance 2 Ω is connected across a 4 Ω resistor. The TERMINAL voltage of the baTwo cells of emfs ε₁ = 2 V and ε₂ = 1.5 V with internal resistances r₁ = 1 Ω and r₂ = 2 Ω are connected in PARA Wheatstone bridge with arms P, Q, R and S is balanced whenIn the drift model of conduction, the average drift velocity v_d of electrons in a conductor of cross-section The resistance R of a metallic conductor typically