Testing E & B Fields: Is This the Only Way?

[cragar]

Is the only way to tell that I have a B field, is to take a test charge and place it stationary and see that it doesn't move? And then fire a test charge and see that it gets deflected when it is moving at a speed. And if my test charge moved from rest I would know there is an E field.
Is this the only way to tell the difference between E and B fields. At least relative to me.

 

[Claude Bile]

The old fashioned way is to wave a conductor around and see if you generate a current.

Claude.

 

[cragar]

If i moved a conductor around in an E field . Wouldn't it create a small current for a little while until it polarized the material.