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ENTRANCE TEST – 2012 :: Discussion
| 2. | A 10 cm long solenoid has 100 turns. What will be the magnetic field inside it along its axis if one micro ampere current is passed through it? | |
| A. | 4Ï€ x 10-13 tesla | |
| B. | 4Ï€ x 10-7 tesla | |
| C. | 4Ï€ x 10-10 tesla | |
| D. | 4Ï€ x 10-16 tesla | |
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