Can my husband claim me as a dependent if he is the sole provider and I am unemployed?

[Opus 17]

A spouse is never a dependent.  If you file as married filing jointly, you will have a larger standard deduction and possibly lower tax rates.  Married filing jointly is always allowed when you are married, even if one spouse does not work.  A joint return simply lists all the income and deduction of both spouses on one return. 

[macuser_22]

No.  A spouse is NEVER a dependent, but you simply file jointly even if on spouse has not income.  That is MUCH better than a dependent anyway.      (A dependent only gets a $500 deductions while a joint return gets a $24,800 vs $12,400 for single deduction.)