Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
1.10 x 10-6\(\Omega\)m
4.25 x 10-6\(\Omega\)m
2.40 x 10-7\(\Omega\)m
1.70 x 10-8\(\Omega\)m
Correct answer is D
Resistance = \(\frac{\text{ Resistivity x Area}}{Area}\)
= 0.425 x 0.2 x 10-6
= 1.7 x 10-8\(\Omega\)m
A bar magnet is most effectively demagnetized by
placing it in a N - 5 position and hitting it with a hammer
subjecting it to an electric current from a battery
bringing its north pole in contact with the north pole of a very strong magnet
heating the magnet
Correct answer is A
No explanation has been provided for this answer.
is largest when they are arranged end to end
is greatest when they are arrangedparallel with like poles adjacent to each other
depends only on the number of magnets provided they arev parallel
is greater when the magnets are arranged on a wooden surface than on a metaln surface
Correct answer is A
No explanation has been provided for this answer.
carry the same magnitude and sign of charge
are at the same potential
are at the same temperature
are of the same size
Correct answer is B
No explanation has been provided for this answer.
i and ii
iii and iv
i and ii
ii and iv
Correct answer is D
No explanation has been provided for this answer.