Choose all correct sentences a. The power (equation 8) is maximum when the value of the impedance is greater than the value of the resistance. b. Resonance occurs when ω2 = 1/ LC c. At resonance, the power is maximum and the impedance is minimum. d. At resonance, R2- LC e. The quality factor L/ C f. The quality factor Q = g. The impedance Z is always larger than the resistance R.

Note: Check the attached image for a clearer question

From the attached image, the answers are 2,3,6,7

Explanation:

Maximum power occurs at resonance, i.e. , not when impedance is greater than resistance

Resonance occurs when the Inductive reactance equals the capacitive reactance, i.e. , not

and when,

Therefore, option B is correct

Since the formula for impedance is , at resonance, Z = R i.e. the impedance is minimum

At resonance, there is maximum power and minimum impedance

Thew Quality Factor,

The impedance Z is always larger than the resistance R, note that it is not stated that this condition is at Resonance, that makes it correct.