How much time heater will take to increase the temperature of 100g water by `50^(@)C` if resistance of heating coat is `484Omega` and supply voltage i

Question

How much time heater will take to increase the temperature of 100g water by `50^(@)C` if resistance of heating coat is `484Omega` and supply voltage i

How much time heater will take to increase the temperature of 100g water by `50^(@)C` if resistance of heating coat is `484Omega` and supply voltage is 220V a.c.

Monjur Alahi

5 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

Heat given heater=heat taken by water
`rArr (V^(2))/(R)t=ms Jdeltatheta`
`rArr(220xx220)/(484)t=(100xx10^(-3))(4.2xx10 ^(3))(50)`
`rArr t=210` sec

5 views Answered 2023-02-05 15:29