B PB and a A are seg A perpendiculas to seg AB. If Po=5cm and a o=iem. ACOPOB) = 150cm², find ACAQOA)​

Question

B
PB and a A are
seg
A perpendiculas to seg AB.
If Po=5cm and a o=iem.
ACOPOB) = 150cm², find
ACAQOA)​

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Liliana 2 months 2021-10-09T18:44:57+00:00 1 Answer 0 views 0

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    2021-10-09T18:46:40+00:00

    Answer:

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    Current Electricity

    Electrical Resistance & Resistivity

    In the following diagram, t…

    PHYSICS

    Asked on December 26, 2019 byAatif Mahlawat

    In the following diagram, the lengths of wires AB and BC are equal, but the radius of wire AB is double that of BC. The ratio of potential gradient on wires AB and on BC will be (wires are made of the same material).

    A

    4:1

    B

    1:4

    C

    2:1

    D

    1:1

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    ANSWER

    Let the length of AB and BC is P

    And 

    Radius of AB is 2r

    Radius of BC is r 

    RAB=π(2r)2ρP=4πr2ρP

    And

    RBC=πr2ρP

    Therefore

    RAB=4RBC

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