(a) State two advantages of a C.R.O as a voltmeter
(b) A television tube is a cathode ray tube modified. State two modifications
(c) State the functions of the following parts of a C.R.O(i) Grid
(ii) X-plates
(iii) Fluorescent screen
(d) A modern X-ray tube is shown below(i) Name the parts labeled A-D (2mks)A
Copper Anode
B
Tungsten Target
C
Filament
D
Cooling fins
(ii) Give the functions of:- (1mk)(i) Shielding with lead
Lead absorbs the radiation (1mk)
(ii) Evacuating the tube
Prevents collisions, avoid secondary electrons (1mk)
1 Comment
Other than penetrating powers, state two differences between soft and hard X-rays (2mks)
K.C.S.E Physics Q & A - MODEL 2019PP2QN09
​Figure 4 shows the input and output signals on a CRO screen when two diodes are used during a full wave rectification.
​Explain how the two diodes rectify the input signal.
answers
K.C.S.E Physics Q & A - MODEL 2017PP2QN19
​(a) Figure 10 shows a block diagram of a cathode ray oscilloscope (CRO).
State the names of the parts labelled B1 and B2.
|
CATEGORIES
Categories
All
Topics
FORM I - PHYSICS SYLLABUSFORM II - PHYSICS SYLLABUSTOPICS
FORM III - PHYSICS SYLLABUSFORM IV - PHYSICS SYLLABUSARCHIVES
RSS FEEDS
AUTHOR
M.A NyamotiMy passion is to see students pass using right methods and locally available resources. My emphasis is STEM courses
|
Primary Resources
College Resources
Can't find what you want? Use this Search box. |
Secondary Resources
|
Contact Us
Manyam Franchise
P.O Box 1189 - 40200 Kisii Tel: 0728 450 424 Tel: 0738 619 279 E-mail - sales@manyamfranchise.com |