17. A cable with a length of 4m and a diameter of 0.6 mm has a resistance of 0.96 ohms. If a potential difference of 20
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17. A cable with a length of 4m and a diameter of 0.6 mm has a resistance of 0.96 ohms. If a potential difference of 20
17. A cable with a length of 4m and a diameter of 0.6 mm has a resistance of 0.96 ohms. If a potential difference of 20V is applied between the two ends of this cable, what will be the current in the cable?