When a choke is connected in series with a lamp in dc line, the lamp shines brightly. Insertion of an iron core in the choke does not affect the brigh

Question

When a choke is connected in series with a lamp in dc line, the lamp shines brightly. Insertion of an iron core in the choke does not affect the brigh

When a choke is connected in series with a lamp in dc line, the lamp shines brightly. Insertion of an iron core in the choke does not affect the brightness. What happens in case of ac line?

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

An inductance acts as a simple conductor in a dc, line and reducing its self-inductance by introducing an iron case, has no effect on the brightness of the lamp. In ac line the presence of inductances results in a drop a voltage , So the brightness of the lamp decreases. Introduction of the iron core further reduces the brightness of the lamp.