A solenoid is 1.0 metre long and it has 4250 turns. If a current of 5.0 ampere is flowing through it, what is the magnetic field at its centre \[[{{\mu }_{0}}=4\pi \times {{10}^{-7}}\,weber/amp-m]\] [MP PMT 1996]

\[2\times {{10}^{-5}}N,\,\]attractive

\[5.4\times {{10}^{-2}}\,weber/{{m}^{2}}\]

\[2.7\times {{10}^{-2}}\,weber/{{m}^{2}}\]

\[2\times {{10}^{-5}}N,\,\]attractive

\[0.675\times {{10}^{-2}}\,weber/{{m}^{2}}\]

A solenoid is 1.0 metre long and it has 4250 turns. If a current of 5.

1.	A solenoid is 1.0 metre long and it has 4250 turns. If a current of 5.0 ampere is flowing through it, what is the magnetic field at its centre \[[{{\mu }_{0}}=4\pi \times {{10}^{-7}}\,weber/amp-m]\] [MP PMT 1996]
A.	\[5.4\times {{10}^{-2}}\,weber/{{m}^{2}}\]
B.	\[2.7\times {{10}^{-2}}\,weber/{{m}^{2}}\]
C.	\[2\times {{10}^{-5}}N,\,\]attractive
D.	\[0.675\times {{10}^{-2}}\,weber/{{m}^{2}}\]
Answer» C. \[2\times {{10}^{-5}}N,\,\]attractive

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A solenoid is 1.0 metre long and it has 4250 turns. If a current of 5.0 ampere is flowing through it, what is the magnetic field at its centre \[[{{\mu }_{0}}=4\pi \times {{10}^{-7}}\,weber/amp-m]\] [MP PMT 1996]

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