The frequency of Hartley oscillator is expressed as __________(Where L is effective inductance and C is the capacitance)

• A. 1/(4ᴨ√LC)
• B. 1/(2ᴨ√LC)
• C. 1/(3ᴨ√LC)
• D. √3/(2ᴨ√LC)
• E. 1/(4ᴨ√LC)b) 1/(2ᴨ√LC)c) 1/(3ᴨ√LC)d) √3/(2ᴨ√LC)