An oscilloscope has an input impedance consisting of 1 M&ohm; and 20 p – McqOptions

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1.	An oscilloscope has an input impedance consisting of 1 M&ohm; and 20 pF is parallel. A high impedance probe connected to input of this oscilloscope has a 10 M&ohm; series resistance. This 10 M&ohm; series resistance
A.	may not be shunted
B.	should be shunted by 2 pF capacitor
C.	should be shunted by 20 pF capacitor
D.	should be shunted by 200 pF capacitor
Answer» C. should be shunted by 20 pF capacitor

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