[单选题]
A solenoid 20 cm long bht edj r91kfg33 8-ihay7g c/is wound with 5000 turns of wire. What magnz ktx44oaf4 rpsn7ba4(t 3;msh-m l8c etic field is produced at the center of the m 4cat;(rp84hsnk-x44fasb oz 3l7mt solenoid when a current of 10 A flows?
A. $0.0063 \; T$
B. $0.20 \; T$
C. $3.2 \; T$
D. $4.8 \; T$
