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Why does the skin resistance go down and the current goes up when you lie to a lie detector?
Wiki User
∙ 11y ago
because you sweat.
Wiki User
∙ 11y ago
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How does resistance effect the flow of current in a wire?
Current is inversely proportional to the resistance of the circuit. Resistance goes up, current goes down. Resistance goes down, current goes up.
As resistance goes up where do current goes?
down
When resitance increases current does what?
Current goes down with an increase in resistance.
When resistance is in a circuit what happens to the current?
When you add resistance to a circuit, current goes down. Ohm's Law: current = voltage divided by resistance.
Explain how changing the resistance in a circuit chages the current?
Ohms' law says if voltage stays constant resistance controls the current flow. Resistance goes up, current goes down. E/I*R.
If resistance goes up does current go down?
At constant temp.& pressure,on the same circuit,with potential difference unchanged,current reduces if resistance increases.(Ohm's law).
Why it is said to be negative resistance region?
A negative resistance region is where the current goes up while the voltage goes down, or vice versa. This is a characteristic of the esaki or tunnel diode, when it is in its tunnel region.
When a resistor is connected in parallel what happens to the size of current form the battery?
When a resistor is added the current goes down, that is expressed in the equation current= voltage/ resistance
Why does current decrease when resistance increases?
Because that's the definition of Ohm's law. Current = voltage / resistance. Here's one way to think about it. Resistance is the degree of difficulty in moving charge from one place to another. If you increase that resistance, it is harder to move the charge. Current is rate of flow of that charge, hence current goes down.
If current goes down in an electrical circuit and voltage remains the same what will happen to resistance?
v = i*RIf i goes down then R must go up (assuming v remains the same).AnwerCompletely impractical question. Resistance is not directly affected by voltage or current, so what you describe won't happen!
A battery connected to a resistor supplies a current of 4 amps. If another resistor of equal resistance is connected in series with first resistor the current the battery supplies will be how much?
Half that, or 2 amps. The basic rule in circuits is that voltage (E) equals current (I) times resistance (R). Here's how that expression of Ohm's law looks: E= I x R That means that current equals voltage divided by resistance, as is shown here: I = E / R This expression says that resistance is inversely proportional to current (with voltage staying the same). Further, if resistance goes up, current goes down. If resistance doubles (goes up by a factor of 2), which it does in the case specified in the question, then current is cut in half (goes down by a factor of 2). Half of 4 amps is 2 amps, and that's where the answer came from.
What is electricity current potential difference and resistance?
Voltage is the electrical pressure in a circuitAmperes (amps) are the measure of electrical current in a circuitOhms are the measurements of resistance in a circuitCurrent is essentially how fast electrons are moving in a circuitResistance is what impedes the electrical current, and can be found in the wire or various loads in a circuitHope this helps!
