What is the voltage and current of lightning?

A typical lightning flash is about 300 million Volts and about 30,000 Amps. In comparison, household current is 120 Volts and 15 Amps. There is enough energy in a typical flash of lightning to light a 100-watt incandescent light bulb for about three months or the equivalent compact fluorescent bulb for about a year.

What is the relationship between voltage current and resistance?

The relationship between current, voltage and resistance is expressed by Ohm’s Law. This states that the current flowing in a circuit is directly proportional to the applied voltage and inversely proportional to the resistance of the circuit, provided the temperature remains constant.

How does voltage and current affect the power output of a light bulb or electric appliance?

Power is associated by many people with electricity. Since both operate on the same voltage, the 60-W bulb must draw more current to have a greater power rating. Thus the 60-W bulb’s resistance must be lower than that of a 25-W bulb. If we increase voltage, we also increase power.

How are current and resistance related When the voltage of a circuit is constant?

How are the current and resistance related when the voltage of a circuit is constant? The current is cut in half when the resistance doubles because they are inversely proportional. Voltage is directly proportional to current because I=VR. Aretha measures a circuit at 110 V and 240Ω .

Is lightning ac or dc electricity?

Second, lightning is a direct current (DC) that would require it to be converted to alternating current (AC) so it could be used for lights and other equipment.

Does voltage affect resistance?

Ohm’s law states that the electrical current (I) flowing in an circuit is proportional to the voltage (V) and inversely proportional to the resistance (R). Therefore, if the voltage is increased, the current will increase provided the resistance of the circuit does not change.

Does voltage increase when resistance increases?

The current is directly proportional to the voltage and inversely proportional to the resistance. This means that increasing the voltage will cause the current to increase, while increasing the resistance will cause the current to decrease.

What happens to electricity in a circuit?

When it is connected to a complete circuit, electrons move and energy is transferred from the battery to the components of the circuit. Most energy is transferred to the light globe (or other energy user) where it is transformed to heat and light or some other form of energy (such as sound in iPods).

How is the current related to the resistance?

This law also implies that if a voltage of V volt is applied to a resistance of R ohm, then the current is I ampere; that is, the current, voltage, and resistance between two points are always related to each other. A light bulb filament and the wires connecting it to a 12 V battery altogether have a resistance of 5 Ω.

How did ohm describe the relationship between voltage and current?

Ohm expressed his discovery in the form of a simple equation, describing how voltage, current, and resistance interrelate: In this algebraic expression, voltage (E) is equal to current (I) multiplied by resistance (R).

What happens when the resistance of a resistor increases?

That is, if the voltage doubles, the current doubles, too. By the same token, if the resistance of the resistor does not change, then, if the voltage drops in value (decreases), the current also decreases. Similarly, if the voltage increases, the current increases.

Which is equal to the voltage and the resistance?

Current is equal to the voltage divided by the resistance. It’s written like this: