Which of the following is not a part of an A.C generator?
Carbon brushes
Slip rings
Commutator
Field magnet
Armature
Correct answer is C
No explanation has been provided for this answer.
The electrical energy supplied by a Leclanche cell is obtained from the
Nuclear energy
Magnetic energy
Solar energy
Chemical energy
Mechanical energy
Correct answer is D
No explanation has been provided for this answer.
Which of the following has the shortest wavelength?
Infrared rays
Gamma rays
Ultra violet rays
Radio waves
Visible light
Correct answer is B
No explanation has been provided for this answer.
II only
I only
II and III only
I and II only
Correct answer is B
No explanation has been provided for this answer.
The inability of the eye to focus near objects is known as
Long sight
Astigmatism
Presbyopia
Glaucoma
Short sight
Correct answer is A
No explanation has been provided for this answer.