The input impedance of a CRO is equivalent to a 1 MΩ resistance in parallel with a 45 pF capacitance. It is used with a compensated 10 to 1 attenuation probe. The effective input capacitance at the probe tip is

The input impedance of a CRO is equivalent to a 1 MΩ resistance in pa

1.	The input impedance of a CRO is equivalent to a 1 MΩ resistance in parallel with a 45 pF capacitance. It is used with a compensated 10 to 1 attenuation probe. The effective input capacitance at the probe tip is
A.	4.5 pF
B.	5 pF
C.	45 pF
D.	450 pF
Answer» B. 5 pF