Megohm

Antistatic Wrist Strap
... to ground through a coiled retractable cable and 1 megohm resistor, which allows high-voltage charges to leak through but prevents a shock hazard when working with low-voltage parts ... Where higher voltages are present, extra resistance (0.75 megohm per 250 V) is added in the path to ground to protect the wearer from excessive currents this typically takes the form of a 4 megohm resistor in the ...

Test Probe - Voltage Probes - Oscilloscope Probes - Lo Z Probes
... connect to oscilloscopes with a matched 50 ohm (rather than 1 megohm) input impedance ... (for 20× attenuation) series resistor (rather than the 9 megohm resistor of the 10× probe) ... High-impedance scope probes are designed for the conventional 1 megohm oscilloscope, but at high frequencies mismatch between the scope input impedance and the cable impedance presents a transmission line ...

Test Probe - Voltage Probes - Oscilloscope Probes - Passive Probes
... A typical probe uses a 9 megohm series resistor shunted by a low-value capacitor to make an RC compensated divider with the cable capacitance and scope input ... For example, the 9 megohm series resistor is shunted by a 12.2 pF capacitor for a time constant of 110 microseconds ... in parallel with the scope input of 20 pF and 1 megohm (total capacitance 110 pF) also gives a time constant of 110 microseconds ...

Oscilloscope - Features and Uses - Description - Probes
... a capacitance of about 110 pF and a resistance of 1 megohm ... A typical probe uses a 9 megohm series resistor shunted by a low-value capacitor to make an RC compensated divider with the cable capacitance and scope input ... For example, the 9 megohm series resistor is shunted by a 12.2 pF capacitor for a time constant of 110 microseconds ...