An electric current of 5 amp. is divided in three branches forming a parallel combination. ... Their diameters are in the ratio 3, 4 and 5. Find the current in each branch if the wires are of the same material. [IIT, 19751 [Ans. = 1.40 amp, i. = 1.66 amp, /a#39;3 = 1.94 amp] 8. A battery of emf 1.4 I7 and internal resistance 2 ohm is connected to a resistance of 100 ohm through ... On short circuiting, the current in the fuse wire reaches 30 A. How long after the short circuiting will fuse begin to melt?

Title | : | Course in Physics 4: Electrostatics and Current Electricity |

Author | : | |

Publisher | : | Pearson Education India - |

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