What is the relationship between heat and resistance?
Heat produce per unit time can be called power so this means that heat produced is inversely proportional to resistance But heat produced is due to resistance offered by a conductor…. This implies heat produced is directly proportional to resistance Physics: What is the direct relation between power and resistance?
Why does the equation state that heat produced is inversely proportional?
Moreover metals with high resistances are used as heating elements ,like Nichrome? Why does the equation state that the heat produced is inversely proportional to Resistance Show activity on this post. If H = V 2 R t ,then increasing resistance means decreasing the heat produced. Implies that the voltage V stays constant.
Is heat produced directly proportional to resistance offered by a conductor?
But heat produced is due to resistance offered by a conductor…. This implies heat produced is directly proportional to resistance Physics: What is the direct relation between power and resistance?
What is the relationship between power and resistance in a circuit?
P = V²/R = I²R…..this implies that power is inversely proportional to resistance. Heat produce per unit time can be called power so this means that heat produced is inversely proportional to resistance But heat produced is due to resistance offered by a conductor…. This implies heat produced is directly proportional to resistance
How are heat and resistance related?
As electrons move through a metal conductor, some collide with atoms, other electrons or impurities. These collisions cause resistance and generate heat. Heating the metal conductor causes atoms to vibrate more, which in turn makes it more difficult for the electrons to flow, increasing resistance.
Why is resistance directly proportional to heat?
This is exactly as you have stated, the heat is directly proportional to the resistance and the square of the current. Because the current term is squared in the power equation, the heat given off by the circuit is more highly dependent on the current flowing through it than the resistance.
How is heat directly proportional to?
Thus heat produced in a conductor is directly proportional to the time of current flow, resistance of conductor as well as square of magnitude of current.
Does heat increase with resistance?
Yes, heat is generated by collisions in the resistor, and yes, for a given resistor, the larger the current, the larger the heat. Also, for a given current, the heat is generated where the resistance is largest.
Is heat directly proportional to resistance or inversely?
Resistance is directly proportional to heat.
Is temperature inversely proportional to resistance?
Temperature: It is directly proportional to resistance. As the temperature increases, the value of resistivity increases so resistance increases.
Which is directly proportional to the resistance?
LengthThe correct answer is Length. The resistance of a conductor is directly proportional to length. The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area. Resistance also depends on the material of the conductor.
Does lower resistance produce more heat?
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.