Fill in the blank.
Mass of the earth is in order of __________.
Mass of the Earth:
Hence, Mass of the earth is in order of 6.4×106m.
Fill in the following blanks with suitable words :
(a) A fuse should always be placed in the ........... wire of a mains circuit.
(b) The earth wire should be connected to the ............ of an appliance.
Fill in the blanks using suitable word(s).
Mass is a _____ physical quantity.