Question

An electric bulb of 50 W is used for 6 h per day. Calculate the units of energy consumed in one day by the bulb

Answer 1

POWER OF BULB = 50 W = 50 /1000 KW

TIME = 6 HOURS

ENERGY CONSUMED IN ONE DAY = O.05× 6×1 KWH

= 0.3 Kwh(units)

Answer 2

Explanation:

Step-by-step explanation:

power = 60W = 60/1000 = 0.05 KW

➡Time= 6 ʜrs

➡energy = 0.05× 6

➡energy = 0.3 KW.h

➡energy = 0.3.units

∴ Tʜᴇ ᴜɴɪᴛ ᴏғ ᴇɴᴇʀɢʏ ᴄᴏɴsᴜᴍᴇᴅ ɪɴ ᴏɴᴇ ᴅᴀʏ ʙʏ ᴛʜᴇ ʙᴜʟʙ ɪs "0.3 ᴜɴɪᴛs" .

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✡know more✡

➡Rate of doing work is called power.

➡The SI unit of power is ‘Watt’

➡Capacity of doing work is called energy.

➡S.I unit of energy is joule and is denoted by ‘J’.

➡Commercial unit of energy is kilo Watt hour and is written as kWh.

➡the S.I. unit of pressure is Pascal