Question
Download Solution PDFConsider three long straight parallel wires as shown in figure. Find the force experienced by a 25 cm length of wire C.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The magnetic field produced by a steady current flowing in a very long straight wire. The magnitude of the magnetic field is
- Parallel wires carrying currents will exert forces on each other.
- Each wire produces a magnetic field, which influences the other wire.
- When the currents in both wires flow in the same direction, then the force is attractive.
- When the currents flow in opposite directions, then the force is repulsive.
The force exerted on wires can be given by:
Calculation:
Repulsion by wire D,
=
= 5 × 10-4 N
Repulsion by wire G,
= 2 × 10-4 N
∴ Fnet = F1 – F2
= 3 × 10-4 N [towards right]
Last updated on Jun 19, 2025
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