Presence of even very minute amount (say 0.1%) of __________ in copper, reduces its electrical conductivity very seriously. (A) Bismuth (B) Arsenic (C) Antimony (D) Both (B) and (C)

Presence of even very minute amount (say 0.1%) of __________ in
copper, reduces its electrical conductivity very seriously.
(A) Bismuth
(B) Arsenic
(C) Antimony
(D) Both (B) and (C)
by

1 Answer

Answer :

(D) Both (B) and (C)
by

Related questions

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The metal whose electrical conductivity is more, is – (1) copper (2) aluminium (3) silver (4) lead

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The metal whose electrical conductivity is more, is (1) copper (2) aluminium (3) silver (4) lead

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Last Answer : Option A

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Last Answer : (A) 84

Coke oven regenerators are made of __________ bricks. (A) Fire clay (B) Silica (C) Low thermal conductivity (D) High electrical conductivity

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The electrical conductivity of a __________ decreases with rise in temperature. (A) Metal/alloy (B) Semi-conductor (C) Dielectric (D) None of these

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__________ is a donor impurity for semi-conductors. (A) Boron (B) Antimony (C) Gallium (D) None of these

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Last Answer : Answer: A

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Last Answer : (D) All (A), (B) and (C)

Which of the following low melting alloy containing bismuth and lead is used for electric fuse? (A) Wood's metal (B) Babbitt metal (C) Monel metal (D) Duralumin

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Last Answer : Option A

Pick out the wrong statement. (A) Lead can creep under its own weight at room temperature (B) The electrical conductivity of gold is considerably reduced by alloying additions due to the decrease in electron movement (C) Recrystallisation temperature decreases with decrease in strain in a cold worked metal (D) With increase in temperature, the electrical conductivity of intrinsic semi-conductor will increase

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