Is it ok to expose oscilloscope to more than 5V of direct current?
I want to test voltage spikes created by shutting down a DC motor or reley, but I do not want to damage the oscilloscope.
Depends on the spec of the scope.
Most professional scopes would be OK up to around 400V, but I think the back EMF could be briefly higher.
depends on the scope
400v? wow my OLD beater only will handle 50
Typically a collapsing magnetic field will cause a reverse voltage spike around four times the voltage that created the field.
Lefty
Most scopes have over voltage protection for very high spike. What is the highest voltage on the input range switch?