Oscilloscope safety in RC networks A single-ended oscilloscope (earth-referenced ground clip) is connected exactly as shown in a typical RC ladder where the probe’s ground clip is tied to a non-ground node that also connects to C1, R2, and C2. Predict the result of this connection.

Introduction / Context:
Oscilloscopes with single-ended inputs use a ground-referenced clip that is bonded to earth ground. If you attach this clip to a node that is not at ground potential, you create a low-impedance path to earth. In multi-node RC networks, this mistake can unintentionally short portions of the circuit and alter or damage the system under test.

Given Data / Assumptions:

• Instrument: earth-referenced, single-ended oscilloscope channel.
• Connection: the probe’s ground clip is placed on a non-ground node shared by C1, R2, and C2.
• Assume typical bench wiring: scope chassis and ground clip are connected to mains earth.

Concept / Approach:
Earth-referenced ground clips clamp the chosen node to earth potential. Any network node tied by that clip becomes effectively shorted to ground. Components connected from that node to ground line are bypassed, altering impedances and measured voltages, and may cause high currents if a source drives across the unintended short.

Step-by-Step Solution:

Verification / Alternative check:
Compare with a differential probe or an isolated/battery-powered scope. Those instruments do not reference either lead to earth, preventing the short; the network behavior remains intact and the voltage is measured correctly.

Why Other Options Are Wrong:

Common Pitfalls:
Using ground clips on floating or active nodes; forgetting that the probe shell is grounded; not using differential probes when required.

Final Answer:
short C1, R2, and C2