An electric iron of resistance 20ohm takes a current of 5A. Calculate the heat developed in 30s.
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Answer:
Explanation:
H=I square rt
5×5×20×30=15000 j
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ʜᴇʀᴇ ɪs ᴜʀ ᴀɴsᴡᴇʀ:-⏬⏬
ʜᴇᴀᴛ ᴘʀᴏᴅᴜᴄᴇᴅ = 15000 ᴊᴏᴜʟᴇs. ʜᴇɴᴄᴇ, ᴛʜᴇ ʜᴇᴀᴛ ᴘʀᴏᴅᴜᴄᴇᴅ ɪɴ 30 sᴇᴄᴏɴᴅs ɪs 15000 ᴊᴏᴜʟᴇs.
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