basic capactior question

[Ken Williams]

if I put a capacitor (say a 10 mF) in series with another one (10 mF) is
that the same as having a 20mF capacitor?

 

[PhattyMo]

if I put a capacitor (say a 10 mF) in series with another one (10 mF) is
that the same as having a 20mF capacitor?

In *SERIES*, No. You would have a 5mf capacitor,with 2x the voltage rating.

 

[Shaun]

if I put a capacitor (say a 10 mF) in series with another one (10 mF) is
that the same as having a 20mF capacitor?

You have to put them in parallel for the capacitance to add up.

Shaun

 

[Charles]

In *SERIES*, No. You would have a 5mf capacitor,with 2x the voltage
rating.

The voltage rating can be iffy. Series capacitors in high-energy supplies
are often bridged with equalizing resistors.

 

[PhattyMo]

The voltage rating can be iffy. Series capacitors in high-energy supplies
are often bridged with equalizing resistors.

That is true! I usually parallel a 100-220K resistor with each cap,in
tube PSU circuits.

 

[Ken Williams]

You have to put them in parallel for the capacitance to add up.

Shaun

Thanks for the answer.