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65.A tangen galvanometer has 80 turns of wire,The internal and external diameter of the coil are 19 cm and 21 cm respectively.The reduction factor of the galvanometer at a place where H= 0.32 oersted will be |
| Answer» 65.A tangen galvanometer has 80 turns of wire,The internal and external diameter of the coil are 19 cm and 21 cm respectively.The reduction factor of the galvanometer at a place where H= 0.32 oersted will be | |