Question

State the concept of internal voltage drop.​

Answer 1

Explanation:

Voltage drops in the internal resistance of the source, across conductors, across contacts, and across connectors are undesirable because some of the energy supplied is dissipated.

Answer 2

Good afternoon........

Concept of internal voltage drop: Every

practical source offers some opposition to the

current due to its internal parts or components.

e.g. a 12V battery has electrodes made up

of conducting material having finite low

resistance. Such a resistance of internal parts of

source is called ‘Internal resistance’ of source.

When source delivers current to load, the

current flowing through the internal resistance

causes voltage drop across it. This voltage drop

is called ‘Internal Voltage Drop’. Due to this

internal voltage drop, the terminal voltage of

practical voltage source is always less than its

emf.

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