Question

14. To charge a dead battery do you connect the (+) of the good battery to (+) of the dead battery and (-) of good to () of bad or the (+) of good battery to (-) of dead battery and () of good to (+) of bad battery? 15. Two copper wires of the same length and different diameters are connected in parallel In which case is (a) the resistance and (b) current in the wire greater? 16. In the arrangement shown find the (a) potential at B, (b) emf of the battery and (c) is the battery getting "charged" or "discharged". A (0.5 ohm) . D---- .Given: VA 50 V and a current of 10 A flows from left to right & VD 0. 17. What is the charge on the capacitor and the current through the resistor in a RC circuit, (2ohm) B(---C long after the switch is (a) opened; (b) closed? 18. What is the direction of current in the resistor R of RC series circuit while the capacitor is getting charged and while the capacitor is getting discharged? Ma LOG ENTRY SOLV

18 in detail please.

Answer 1

118 RC series circuit ; с power e no ha supply voltage fis 0 the series RC circuit is as above and Vo is the voltage or current (I) supplied by the battery / source. d when Capacitor is getting charged: when current I flows look wise, as battery gets connected the capacitor starts getting charged and starts accumulating electrons of charges, Formes zene briga frig @ Iraq 37" which results in development of a potential barries within capacitor as shown in figure ① + chayes at one side and -ve on another. di discharging: after some time when capacitors gets fully charged , cument I will no more flow in the circuit,

as, developed potential in capacitor starts discharging by relearing charges back to the circunt in auth clock wise, because the higher potential genereated is on the above of capacitor and dower potential is downwards, And charges always flow from higher to lower potentials. as shown below! colile discharging: MR a The refore, if take coordinates, while changing current in R flows in the x-axis , and while dischanging it flow towards