3 16 Two wires A and B of the same material having radii in the...
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3 16 Two wires A and B of the same material having radii in the ratio 1 2 and carry currents in the ratio 4 1 0 The ratio of drift speed of electrons in A and B is pg 9 Confiring 4 1127 K 1 16 1 2 1 16 3 1 4 4 4 1 17 When a current I is set up in a wire of radius r the drift velocity is Vd If the same current is set up through a wire of radius 2r the drift velocity will be 1 4 Vd 2 2Vd 3 Vd 2 4 Vd 4 18 Five equal resistances each of resistance R are connected as shown in the figure A battery of V volt is connected between A and B The current flowing in AFCEB will be C www R C R F R R B E ns 2
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