Question

$Q$-factor can be increased by having a coil of:

• A. Large inductance, small ohmic resistance
• B. Large inductance, large ohmic resistance
• C. Small inductance, large ohmic resistance
• D. Small inductance, small ohmic resistance

Answer 1

Answer: (A)

$Q$ factor is given by
$\frac{1}{R}\sqrt{\frac{L}{C}}$
So, for large quality factor the inductance should be large and resistance and capacitance must be small.