Question

why are fuse wires or miniature circuit breakers not used in a circuit containing electric cells

Answer 1

Hey mate...

The fuse wire or MCB s are not used in a circuit containing electric cells because Fuse wires or miniature circuit breakers are not required in the small battery operated electrical circuits where the amount of current follow is low and if the circuit breaks there is no risk of fire.

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Answer 2

Answer:

MCBs are most commonly used in place of fuses because it is easier to turn on an MCB when it gets tripped.

In a circuit where electric cells are used to supply low values of voltage and current, no fuses are required because

there is very little risk of short circuit. To avoid any accident, these fuses are used in circuits where high voltages

and currents are delivered.