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A wire which connect the battery of an autombile to its starting motor carries a current of 300 a . What is the force per unit lengthbetween the wires if they are 70 cm long and 1.5 cm apart? is the force attractive or repulsive? i want to know how can a force be determined as repulsive or attractive.


A wire which connect the battery of an autombile to its starting motor carries a current of 300 a . What is the force per unit lengthbetween the wires if they are 70 cm long and 1.5 cm apart? is the force attractive or repulsive?
 
i want to know how can a force be determined as repulsive or attractive.


Grade:upto college level

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