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.
5.0 x 10-5N
5.0 x 10-4N
5.0 x 105N
5.0 x 106N
Correct answer is B
F = qvB
= 10 x 10-6 x 1.0 x 105 x 10-4
= 5.0 x 10-4N
In storing magnets, keepers are used to
reduced self-demagnetization
cancel the effect of the earth's magnetic field
protect the magnet from stray electric field
increase the strangth of the magnets
Correct answer is A
No explanation has been provided for this answer.
S and N
N and N
S and S
N and S
Correct answer is B
No explanation has been provided for this answer.
Which of the following factors does not affect the e.m.f of a primary cell? Its
size
internal resistance
operating temperature
duration of usage
Correct answer is A
No explanation has been provided for this answer.
induction
friction
conduction
convection
Correct answer is B
No explanation has been provided for this answer.