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.
Which of the following is NOT part of an a.c generator?
Commutator
Armature
Field magnet
Carbon brushes
Slip rings
Correct answer is A
The general A.C. generator has all the listed components except the commutator.
200
1200
1600
2400
4800
Correct answer is C
No explanation has been provided for this answer.
1000 Nm
500 Nm
10 Nm
5 Nm
1.6 Nm
Correct answer is C
The moment (or torque) of a couple is calculated by multiplying the size of one of the force by the perpendicular distance between the two forces.
Given: F = 40N; d = 25cm = 0.25m
Moment = 40 x 0.25 = 10Nm.
0.75
0.88
0.95
1.13
1.33
Correct answer is A
No explanation has been provided for this answer.
The heat from a fire in a closed room reaches someone far away in the room, mainly by
reflection
diffusion
conduction
radiation
convection
Correct answer is D
No explanation has been provided for this answer.