The equation for the output frequency of a 555 timer operating in the astable mode is: . What value of C 1 will be required if R 1 = 1 k , R 2 = 1 k , and f = 1 kHz?

The equation for the output frequency of a 555 timer operating in the

1.	The equation for the output frequency of a 555 timer operating in the astable mode is: . What value of C 1 will be required if R 1 = 1 k , R 2 = 1 k , and f = 1 kHz?
A.	0.33 F
B.	0.48 F
C.	480 F
D.	33 nF
Answer» C. 480 F