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Force Between 2 Parallel Currents Video Lecture | Physics for JEE Main & Advanced
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FAQs on Force Between 2 Parallel Currents Video Lecture - Physics for JEE Main & Advanced
| 1. What is the formula for calculating the force between two parallel currents? |  |
Ans. The formula for calculating the force between two parallel currents is given by the equation F = (μ0 * I1 * I2 * L) / (2π * d), where F is the force, μ0 is the permeability of free space, I1 and I2 are the currents in the two wires, L is the length of the wires, and d is the distance between the wires.
| 2. How does the force between two parallel currents change with the distance between the wires? | |
Ans. The force between two parallel currents is inversely proportional to the distance between the wires. As the distance increases, the force decreases, and vice versa. This relationship is described by the equation F ∝ 1/d, where F is the force and d is the distance between the wires.
| 3. What is the direction of the force between two parallel currents? | |
Ans. The force between two parallel currents follows the right-hand rule. If the currents are flowing in the same direction, the force between them is attractive, pulling the wires towards each other. If the currents are flowing in opposite directions, the force between them is repulsive, pushing the wires away from each other.
| 4. How does the length of the wires affect the force between two parallel currents? | |
Ans. The force between two parallel currents is directly proportional to the length of the wires. As the length increases, the force also increases, and vice versa. This relationship is described by the equation F ∝ L, where F is the force and L is the length of the wires.
| 5. What is the role of permeability of free space in the force between two parallel currents? | |
Ans. The permeability of free space, denoted by μ0, determines the strength of the force between two parallel currents. It is a constant value and represents the ability of a material to allow the flow of magnetic fields. A higher value of μ0 leads to a stronger force, while a lower value results in a weaker force.
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