Shortcut Methods
Shortcut Methods and Tricks for LC Oscillations
JEE Mains
1. Resonance Formula
Where:
is the resonant frequency in Hz is the inductance in Henry is the capacitance in Farads
2. Time Period Formula
Where:
is the time period in seconds is the inductance in Henry is the capacitance in Farads
3. Energy Storage Formula
The total energy stored in an LC circuit at any instant is given by:
Where:
is the total energy stored in Joules is the inductance in Henry is the current in Amperes is the capacitance in Farads is the voltage in Volts
4. Quality Factor (Q) Formula
The quality factor (Q) of an LC circuit is a measure of its efficiency. It is given by:
Where:
is the quality factor is the angular frequency is the inductance in Henries is the resistance in Ohms
CBSE Boards
1. Resonance Formula
Where:
is the resonant frequency in Hertz is the inductance in Henry is the capacitance in Farads
2. Time Period Formula
Where:
is the time period in seconds is the resonant frequency in Hertz
3. Energy Storage Formula
Where:
is the energy stored in Joules is the capacitance in Farads is the voltage across the capacitor in Volts
4. Quality Factor (Q) Formula
Where:
is the quality factor is the resistance of the inductor in ohms is the inductance of the inductor in Henries is the capacitance of the capacitor in Farads