Question
Easy
Solving time: 3 mins
The wires which connect the battery of an automobile to its starting motor carry a current of 300 A (for a short time). What is the force per unit length between the wires if they are 70 cm long and 1.5 cm apart? Is the force attractive or repulsive?
Text solutionVerified
The force between two wires is given by the relation,
Since the direction of current in two wires is opposite, a repulsive force exists between them.
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Question Text | The wires which connect the battery of an automobile to its starting motor carry a current of 300 A (for a short time). What is the force per unit length between the wires if they are 70 cm long and 1.5 cm apart? Is the force attractive or repulsive? |
Updated On | Jun 19, 2023 |
Topic | Moving Charges and Magnetism |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 Video solution: 1 |
Upvotes | 158 |
Avg. Video Duration | 11 min |