92 Current Electricity nichrome is 1 7 x 104C 1 The temperature of nichrome now is NCERT Pg 105 1 700 C 3 850 C 10 The incorrect statement among the following statements is INCERT Pg 111 2 750 C 4 900 C 1 Emf of a cell is the potential difference between its positive and negative electrodes in an open circuit 2 Internal resistance of dry cells is much higher than common electrolyte cells 3 The terminal potential difference of a cell can be zero 4 When current passes from positive to negative terminal of a cell inside it terminal potential difference is less than its emf 11 When a current of 2 A flows in a battery from its negative to positive terminal the potential difference across it is 12 V If a current of 3 A is flowing in opposite direction it produces a potential difference of 15 V the emf of the battery is NCERT Pg 111 1 12 6 V 2 13 5 V 3 14 0 V 4 13 2 V 12 In the combination of two cells in parallel by joining positive terminals together and similarly two negative ones the value of Eq in circuit is NCERT Pg 115 8 V 15 F 6 V F 252 www 292 ww R 1 7 A 3 2 A 13 When a metal conductor connected to right gap of meter bridge is heated the balancing point from left end NCERT Pg 120 1 Shifts towards left 2 Shifts towards right 3 Remains unchanged 4 Shift to zero position 14 Resistance P Q S and R are arranged in clockwise cyclic order to form a balanced wheatstone bridge The ratio of electric power consumed in the branches P Q and R S is INCERT Pg 109 1 1 1 2 R P 2 10 A 4 8 A cal IIT s 4 Q S A battery of e m f 5 V and negligible interna resistance is connected across the diagonally opposite corners of a cubica network consisting of 12 resistors of networ each of resistance 1 2 The current alon INCERT D