Voltac or Voltaic: How To spell?

The word Voltac is misspelled against Voltaic, an adjective meaning "pertaining to Alessandro Volta, who first devised apparatus f developing electric currents by chemical action, and established this branch electric science; discovered by Volta; as, voltaic electricity."

Word contains consecutive vowels 'AI' in between alphabets volt & c is misspelled as 'A'
Wrong Spelling:  volt-a-c 
Correct Spelling:  volt-ai-c 
Find more incorrect spellings of Voltaic to spell right way.

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