Why does increasing current increase resistance?

An electric current flows when electrons move through a conductor, such as a metal wire. The moving electrons can collide with the ions in the metal. This makes it more difficult for the current to flow, and causes resistance. The relationship between resistance and wire length is proportional .

Why does low resistance produce more heat?

That electrical energy will be dissipated in the form of heat, heating up the wire in the process. This heating is called Joule heating (James Prescott Joule) or ohmic heating or resistive heating. Which tells us that lower resistance (R) will produce higher current. Therefore lower resistance produces more heat.

How does resistance change the current?

Ohms law states that the current flowing in a circuit is proportional to the voltage applied to the circuit, and inversely proportional to the resistance of the circuit. In other words, for a given voltage, the current in the circuit will decrease as the resistance increases.

Why does resistance increase with potential difference?

As the potential difference across the filament lamp increases the current across the lamp also increases due to Ohm’s law. The increase in current flow also causes the lamp to heat up which causes the resistance of the lamp to also increase.

How does the heat produced by a current passing through a fixed resistance?

Resistance is the hindrance or reluctance that, a conductor or the material through which current is flowing, has to offer. This hindrance or resistance in path of current produces heat as byproduct thus more the current more is the heat.

What happens to the current as the resistance decreases?

Voltage, Current and Resistance Summary This means that if the voltage is high the current is high, and if the voltage is low the current is low. Likewise, if we increase the resistance, the current goes down for a given voltage and if we decrease the resistance the current goes up.