What causes damage current or voltage?
Obviously, the more voltage available to cause the current to flow, the easier it will flow through any given amount of resistance. Hence, the danger of high voltage that can generate enough current to cause injury or death.
What kills a person voltage or current?
An electrical current at 1,000 volts is no more deadly than a current at 100 volts, but tiny changes in amperage can mean the difference between life and death when a person receives an electrical shock.
Is there really a voltage between the terminals?
To answer your question more directly, regardless of whether a tiny current flows through the air, there can definitely be a voltage between the terminals. Voltage is another way of describing the electric field.
When is there no current and no ohm’s law?
Ohm’s law applies only for the current flow through a resistor and the voltage across it.When there is no current flow Ohm’s law is not at all applicable.Ohm’s law is not a relation between unrelated voltage and current. There is a difference between source voltage and voltage drop.( I am going to shock you all!
Can there be voltage without current in an open circuit?
Thus, for an (ideal) open circuit (the limit as R → ∞ ), the current through is zero but the voltage across is fixed by the battery voltage. In summary, the voltage across the resistance (in this ideal circuit) is not determined by Ohm’s law, it is determined by the battery.
Can there be voltage without current in an air supply?
There will still be a “load” on the supply, since: air is not a perfect isolator so it must have electrical resistance: (I’m assuming 1 G Ω here) Same as before, current would theoretically be: So my question is: does this small amount of current really flow? Because if not there will be no voltage across the two terminals according to Ohm’s law!