What are the different methods of contraception?
28. (a) On what factor does the resistance of a conductor depends?
(b) Define Resistance. Give it's Sl unit.
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different methods of Contra substance are are1 buy oral pill2 bhai condom 3 .by barrier method 4. by copper t
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- Barrier method
- Surgical method.
- Chemical methods.
Factors are
Nature,area ,cross section, Temperature..
The property of metal which opposes the flow of electrons...
G
The SI unit is ohm
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