I have the same book and it is correct. If you read the following lines it says that for a full wave rectifier f=120 Hz and for a half wave rectifier f=60 Hz. This is the same as the formula I told you because in the formula I told you set f=supply frequency (60 Hz for example) and not twice the supply frequency. Also, the formula I told you is true for full wave rectifier only.Thank you mik3.
i saw it as I/fc in malvino's 'electronic principles' and thats why the doubt.
Vr=I/(2fC) is used when you put f=equal the supply frequencyhi,
When is Vr=I/(2*f*C) used and when is I/fC used?