Question

Name the type of current in two cases.
Current
Current
IT
12. What is power of a lens?
13. What is the meaning of "Re-purpose" with respect to conservation of
environment?
14. What kind of Chemical reactions are represented by the following equation.
X + YZ → XZ+Y
15. 15 ml of water and 10 ml of sulphuric acid are to be mixed in a beaker
i) State the method that should be followed
ii) What is this process called?
16. Copper when exposed to air for a long time acquires a green coat. Why?
III. Answer the following questions:
8 x 2 = 16
17. Draw circuit diagram showing the combination of Resistors R and R, in
parallel, R. and R, in Seires, including ammeter and voltmeter and mark the​

Answer 1

Answer:

current type

1 AC current ( alternating current )

2 DC current ( direct current)

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And the power of Lens is the reciprocal of focal length