Question

The rate of fall of the voltage across the capacitor in a filter used in a diode rectifier depends

• A. upon the difference of the capacitive reactance and load resistance
• B. inversely only on the capacitance
• C. directly on the product of the capacitance and load resistance
• D. upon the sum of the capacitive reactance and load resistance
• E. on the inverse of the product of the capacitance and effective load resistance

Hint:

Time constant $\tau = RC$ controls discharge speed.

Answer 1

Answer: (E)