Use the drop-down menus to complete the sentences. A thin wire has MORE resistance than a thick wire. A short wire has LESS re

Question

Use the drop-down menus to complete the sentences.
A thin wire has MORE resistance than a thick wire.
A short wire has LESS resistance than a long wire.
A warm wire has MORE resistance than a cool wire.

in progress 0
Thu Giang 5 years 2021-08-30T04:39:51+00:00 2 Answers 221 views 1

Answers ( )

  1. diemkieu
    0
    2021-08-30T04:41:00+00:00
    Reply

    Answer:

    A thin wire has  resistance than a thick wire.  more

    A short wire has  resistance than a long wire.  less

    A warm wire has  resistance than a cool wire. more

    Explanation:

  2. King
    0
    2021-08-30T04:41:15+00:00
    Reply

    All these sentences are true.

    Explanation:

    The resistance of a wire varies directly with the length of the conducting wire and varies inversely with the cross sectional area of the conductor.

    The formula is given by R = ρ L/A.

    So the longer the wire, the more the resistance. The thinner the wire, the more the resistance.

    Now, the resistance of a conductor depends with temperature as

    R =R(ref)[1 + α{T – T(ref)}]

    As the conductors have a positive value for α, so the resistance of conductors will increase with increase in temperature.

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )