Short answer type questions
7. A current of 4A flows through a 12 V car headlights bub for 10 10 minutes. How
during this time?
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ʜᴇʀᴇ,
ᴄᴜʀʀᴇɴᴛ ғʟᴏᴡɪɴɢ ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ʙᴜʟʙ,ɪ=4ᴀ
ᴠᴏʟᴛᴀɢᴇ,ᴠ=12V
ᴛɪᴍᴇ,ᴛ = 10 ᴍɪɴᴜᴛᴇs =600s
ᴇɴᴇʀɢʏ ᴛʀᴀsғᴇʀʀᴇᴅ =ᴠʟᴛ
12×4×600
28800
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