Physics · Current Electricity
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A conducting wire of resistivity' p is cut into two equal parts. The resistivity of each part will be:
- A
The same
- B
One fourth
- C
√2 times
- D
Halved
- E
Doubled
When a conducting wire is cut into two equal parts, the resistivity (ρ) of each part remains the same. Resistivity is an intrinsic property of a material and does not depend on the size or shape of the object. So option A is the correct answer.
This option is correct as resistivity of wire doesn't depends on geometry of wire i-e it's length and area.
This option is incorrect as resistivity of wire doesn't depends on geometry of wire i-e it's length and area.
This option is incorrect as resistivity of wire doesn't depends on geometry of wire i-e it's length and area.
This option is incorrect as resistivity of wire doesn't depends on geometry of wire i-e it's length and area.
This option is incorrect as resistivity of wire doesn't depends on geometry of wire i-e it's length and area.
Tagged under Physics · Current Electricity · 2022