1) What is the difference between atomic models of Thomson & Rutherford?
2) Determine valancies of S & N from Formula 2 S & N 3.
3) A battery is to be formed by joining 4 dry cells connecting with wires. Show
how you will connect wires by drawing diagram.
4) We cannot stand on one place for a long time. How then can we sleep on a
place for 8 and odd hours?
5) What is the use of elastic iron strip in electric bell? What will happen if iron
strip loses its flexibility?
6) A force of 100N is applied over an area 50cm x 20cm. Find the corresponding
pressure.
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