Q-2
Fill in the blanks:
1. When the electric current exceeds a certain limit, the fuse wire and
2. During exhalation, the ribs move
3.
is the safety device based on the heating effect of electric current.
4. The three effects of electric current are
and chemical effect.
5. In plants, water is transported through
Answers
Answer:
Ans:
1. melts and breaks
2.downwards and inward
3.heater
Explanation:
1. Electric fuse is a device used to protect over-current in electric circuit. It is made up of material with low melting point such as tin, lead, zinc, etc. When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks.
2. During exhalation, the diaphragm moves up and ribs move downwards and inwards, decreasing the space in the chest cavity, this increases the air pressure inside the lungs and forces the air out of the lungs.
4. When the electric current passes through the wire in the electric heater it becomes hot. ... The safety device based on the heating effect of electric current is called a fuse.
5. The structure of plant roots, stems, and leaves facilitates the transport of water, nutrients, and photosynthates throughout the plant. The phloem and xylem are the main tissues responsible for this movement.
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