Why is heat generated across a resister when electric field is applied?

Kareem Wolff asked a question: Why is heat generated across a resister when electric field is applied?
Asked By: Kareem Wolff
Date created: Fri, May 7, 2021 8:09 AM

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Those who are looking for an answer to the question «Why is heat generated across a resister when electric field is applied?» often ask the following questions:

👉 When is electric field generated?

Electric field is created when there is a difference of voltage. The Electric fields are produced by unit charge or by varying magnetic fields.

👉 Electric field when voltage is applied through capacitor?

As the electric field is established by the applied voltage, extra free electrons are forced to collect on the negative conductor, while free electrons are “robbed” from the positive conductor. This differential charge equates to a storage of energy in the capacitor, representing the potential charge of the electrons between the two plates.

👉 The heat generated when electric car is charging?

In general, cells produce around three times more heat when charging than when driving, and the faster the charging, the greater the amount of heat generated. Indirect cooling has its limitations,...

9 other answers

An electric current contains energy; so does an electric field. When a current flows through a resistor, part of the electrical energy will be wasted - i.e., converted to heat. You can think of this as if some of the electrons crash into atoms, instead of continuing on their way.

An electric current contains energy; so does an electric field. When a current flows through a resistor, part of the electrical energy will be wasted - i.e., converted to heat.

When the electric field is applied across a resistor, free electrons move through resistor which collides frequently with many atoms of resistor. At each collisions they lose their kinetic energy & give it to atoms. It increases the K.E. of vibration of metal atoms which generates heat in the wire. hope you like my answer.

Resistors plays a major role in reducing the current in circuits and therefore protecting circuits from damage resulting from overdraw of current by dissipating the kinetic energy of electrons in current as thermal energy (heat). This is what allows electricity to be useful: the electrical potential energy from the voltage source is converted to kinetic energy of the electrons, which is then ...

Why is heat generated across a resistor when electric field is applied? When the electric field is applied across a resistor, free electrons move through resistor which collides frequently with many atoms of resistor. At each collisions they lose their kinetic energy & give it to atoms.

In this case, electrical power (in units of Watts) consumed by a resistor is equivalent to the product of applied Voltage and the Current flowing through it. This is called active or real power. Note: Heat is only produced by a resistive load (electrical friction) and not in an inductive or capacitive load.

$\begingroup$ *heat is generated by increased collision within the resistor $\endgroup$ – Anamika Ghosh Sep 6 '16 at 13:23 $\begingroup$ Yes, heat is generated by collisions in the resistor, and yes, for a given resistor, the larger the current, the larger the heat.

Electrons are very small negatively charged particles and will be repelled by a negative electric charge and attracted by a positive electric charge. Therefore if an electric potential is applied across a conductor (positive at one end, negative at the other) electrons will "migrate" from atom to atom towards the positive terminal.

Why does electrical current make heat? Electrical current is the flow of electrons through a substance that will permit that flow. The substance is called a conductor.Some conductors are better than others, but none are perfect, and all resist electron flow to some extent.

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How is electric field created across the pn junction?

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When electric field zero?

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When an electric field is applied to a conductor does the electric field develops within the conductor or around the conductor?

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Is there a non zerovoltage across an electric field line?

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How is a magnetic field generated from an electric current?

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Electric model aiplane motors jerks when throttle applied?

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Electric field is strongest when?

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When is electric field 0?

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