What can you say about the current characteristic for both the series and parallel circuit at resonance?

Used LTspice for creating this schematic. Below is the .asc filehttps://www.mediafire.com/file/zxauoh86zi79nfu/EXPERIMENT_01.asc/file

The term duty cycle refers to the amount of time a signal is complete cycle. A. off compared to the period of one B. on The output voltage of op-amp is positive saturation, when the voltage applied to the input is greater than the input. A. inverting B. noninverting A square wave that is 20V at its high state and OV when it is off will produce an average DC when its duty cycle is 75%. Formula: VOUT = Duty Cycle * Peak voltage voltage of A. 7.5V B. 10V C. 15V

An op-amp comparator in a firing circuit can produce waveforms at the output of up to 24 V peak-to-peak without any distortion. An inverse cosine-based firing circuit with a voltage range from +12 to -12 (reference voltage) is used to produce a gating signal for the SCR at the desired delay angle. if the reference voltage is -6.0 volts, the delay angle (in degrees) would be: O A. None of the other choices are correct O B. 150 O C. -120 O D. 120 O E. 60