List of top Physics Questions on Resistance asked in WBJEE JENPAS UG

A conducting circular loop of radius 'a' and resistance R is kept on a horizontal plane. A vertical time-varying magnetic field B = 2t is switched on at time t = 0. Then which of the following statement(s) is/are correct?

A particle is falling freely from height h to the ground. (Where h << R and R = Radius of the Earth). Which of the following figure most correctly depicts the acceleration ‘a’ of the particle as a function of time t (neglect air resistance)?

A network of resistors of resistance R₁, and R₂ extends off to infinity to the right as shown in the figure. The total resistance of the network between points A and B if R₁ >> R₂ is

Let a variable load resistance of R be connected in series with a source of EMF E volt and internal resistance r 2 (see figure). V_AB represents the potential drop between A and B. Then