An 8 cm long wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis. If the magnetic field inside the solenoid is 0.3 T

Question

An 8 cm long wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis. If the magnetic field inside the solenoid is 0.3 T

An 8 cm long wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis. If the magnetic field inside the solenoid is 0.3 T, then magnetic force on the wire is
A. 0.14N
B. 0.24N
C. 0.34N
D. 0.44N

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
`F=Il B sin theta`
Here, `theta=90^(@),I=10A,`
`l= 8cm = 8xx10^(-2)m, B=0.3T`
`therefore" "F=10xx8xx10^(-2)xx0.3xxsin 90^(@)=0.24N`

5 views Answered 2023-02-05 15:29