A solenoid of 1.5 metre length and 4.0 cm diameter possesses 10 turn per cm. A current of 10 A is flowing through it . The magnetic induction at axis
A solenoid of 1.5 metre length and 4.0 cm diameter possesses 10 turn per cm. A current of 10 A is flowing through it . The magnetic induction at axis inside the solenoid is
A. `4pixx10^-3T`
B. `2pixx10^-5T`
C. `2pixx10^-2` gauss
D. `2pi xx10^-5` gauss
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