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If Rin = Rout, then the voltage at the output of the device goes down to half of the value that the circuit has without the external resistance. Scroll down to related links and look at "Interconnection of two audio units".

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16y ago
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6mo ago

Internal resistance equals external resistance when the load connected to a battery consumes power equal to that dissipated in the battery's internal resistance. This occurs when the open circuit voltage of the battery drops to zero.

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Q: When does Internal resistance equals external resistance?
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Continue Learning about Physics

What is the internal resistance of a new D battery with an emf of 1.5 V and a wire of negligible resistance is connected between the terminals of the battery a current of 27 A is produced?

The internal resistance of the battery can be calculated using Ohm's Law. The internal resistance (r) is equal to the voltage drop across the internal resistance (V) divided by the current passing through it (I). In this case, the internal resistance would be 1.5V (emf) divided by 27A (current), which equals approximately 0.0556 ohms.


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The skin has the highest resistance in the human body, followed by bones and cartilage. This resistance helps protect the internal organs and structures from damage caused by external factors like friction, impact, and infection.


What is internal friction in liquid?

Internal friction in a liquid refers to the resistance encountered by the liquid molecules as they flow past each other. It is a measure of how easily the liquid can respond to external forces and deformations. Internal friction affects the viscosity of the liquid, with higher internal friction leading to higher viscosity.


Is pressure internal or external?

Pressure can be both internal and external. Internal pressure refers to the force exerted by a fluid within a closed system, while external pressure can be the force exerted by a substance or object outside of the system onto the system.


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Inertia resists acceleration. Inertia resists a change in the state of motion of a particle or rigid body. For instance, in order for the state of motion of an object to change, there must be a net external force exerting on the object, which is defined as mass times acceleration. Resistance to this net external force would therefore have to resist the object's acceleration, and that is inertia.

Related questions

What is the unit of measurement of internal resistance?

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