A `20 V` 5 watt lamp is used in ac main `220 V` and frequency 50 c.p.s. What pure resistance should be included in place of the above passive elements

Question

A `20 V` 5 watt lamp is used in ac main `220 V` and frequency 50 c.p.s. What pure resistance should be included in place of the above passive elements

A `20 V` 5 watt lamp is used in ac main `220 V` and frequency 50 c.p.s.
What pure resistance should be included in place of the above passive elements so that the lamp can run on its rated voltage?

Monjur Alahi

7 views

2025-01-04 04:42

1 Answers

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

Salim Ahmed Kawsar

Correct Answer - `(a) 4.0 mu F (b) 2.53 H ( c) 720 Omega; (d) Using L or C will be more economical`

7 views Answered 2023-02-05 15:29