question_answer

A solenoid of 1.5 m length and 4.0 cm diameter possesses 10 turns/cm. A current of 5 A is flowing through it. The magnetic induction a axis inside the solenoid is

A) \[\text{2}\,\text{ }\!\!\pi\!\!\text{ }\,\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}}}\,\text{T}\]                  

B) \[\text{2}\,\text{ }\!\!\pi\!\!\text{ }\,\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-5}}}\,\text{T}\]

C) \[\text{2}\,\text{ }\!\!\pi\!\!\text{ }\,\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}}}\,\text{T}\]                  

D) \[\text{2}\,\text{ }\!\!\pi\!\!\text{ }\,\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-5}}}\,\text{T}\]