-It is electrically conductive and forms part of the high-voltage positive electrode,
-It is the second anode, which accelerates the electron beam.
-Acts as a filter capacitor for the high-voltage anode supply
sharon kalunda answered the question on September 10, 2019 at 09:02
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A signal with a frequency of 50Hz is applied across the Y-plates. If the time base with a period of 0.04s is applied across the X-plates, sketch a graph of p.d against time showing the number of waves that can be seen on the screen of the C.R.O
Date posted: September 10, 2019. Answers (1)
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Date posted: September 10, 2019. Answers (1)
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The figure below show the displacement time graph of a wave traveling at 400cm/s.
Determine for the wave the:
(i) Amplitude
(ii) Period
(iii) Frequency
(iv) Wavelength
Date posted: September 10, 2019. Answers (1)
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Date posted: September 10, 2019. Answers (1)
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Date posted: September 10, 2019. Answers (1)
- A hunter standing some distance from a cliff blows a whistle and hears its echo 2 seconds later. How far is the cliff from the...(Solved)
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Date posted: September 10, 2019. Answers (1)
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Date posted: September 10, 2019. Answers (1)
- A ray of light makes an angle of 60° with a plane mirror as shown in the figure below. The mirror is rotated through an...(Solved)
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Determine the new angle of reflection.
Date posted: September 10, 2019. Answers (1)
- A mason uses a six wheel pulley system to raise a weight of 250N through a vertical height of 2.5m using the machine.If the mason...(Solved)
A mason uses a six wheel pulley system to raise a weight of 250N through a vertical height of 2.5m using the machine.If the mason pulls using an effort of 500N. Calculate:
i) The velocity ratio of the pulley system.
ii) The work done by the mason.
iii) The useful work done by the pulley system.
iv) The efficiency of the system
Date posted: September 10, 2019. Answers (1)
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(i) Determine the up-thrust force acting on the block.
(ii) Calculate the density of the liquid.
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Date posted: September 10, 2019. Answers (1)
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Date posted: September 10, 2019. Answers (1)
- The figure below shows an arrangement to demonstrate diffusion through solids.(Solved)
The figure below shows an arrangement to demonstrate diffusion through solids.
The hydrogen gas is supplied for sometimes then stopped and the beaker removed. State and explain what is likely t be observed when the hydrogen gas supply is stopped.
Date posted: September 10, 2019. Answers (1)
- The figure below shows a simple instrument designed by a student for weighing objects.
a) State what happens if one places an item on the weighing...(Solved)
The figure below shows a simple instrument designed by a student for weighing objects.
a) State what happens if one places an item on the weighing pan.
b) State two properties of water that make it suitable for this purpose.
Date posted: September 10, 2019. Answers (1)
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Xcm3 of substance A which has density 800 kg/m3 is mixed with 1000cm3 of water with a density of 1000kg/m3. The density of the mixture is 960kg/m3. Determine the value of X
Date posted: September 10, 2019. Answers (1)
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Water at 200C falls over a waterfall of height 40m. Calculate the temperature of water at the bottom of the waterfall if 80% of potential energy at the top is converted into heat energy
Date posted: September 10, 2019. Answers (1)
- An X-ray tube operates with a p.d. of 200kv. Only 0.5% of the kinetic energy of the electrons is converted into X-rays. Calculate the frequency...(Solved)
An X-ray tube operates with a p.d. of 200kv. Only 0.5% of the kinetic energy of the electrons is converted into X-rays. Calculate the frequency of the X-rays produced, take planks constant = 6.63 x 10-34Js.
Date posted: September 10, 2019. Answers (1)
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State what determines the quality of X-rays in an X-rays tube.
Date posted: September 10, 2019. Answers (1)
- State how the following energy losses are minimized in a transformer.
I Eddy current.
II Flux linkage.(Solved)
State how the following energy losses are minimized in a transformer.
I Eddy current.
II Flux linkage.
Date posted: September 10, 2019. Answers (1)
- The figure below shows capacitors connected to 3v supply.(Solved)
The figure below shows capacitors connected to 3v supply.
Calculate:
(i) The combined capacitance.
(ii) The charged stored in the 2.4μF capacitor.
(iii) The charge stored in 2μF capacitor.
Date posted: September 10, 2019. Answers (1)
- Four 40w bulbs and six 100w bulbs were switched on for 2 hours in the morning and 3 hours at night each day for domestic...(Solved)
Four 40w bulbs and six 100w bulbs were switched on for 2 hours in the morning and 3 hours at night each day for domestic use in a certain institution. Find the monthly bill for the consumer given that the cost of electricity in the country is at Sh.6.50 per unit. (Take one month to be of 30 days).
Date posted: September 10, 2019. Answers (1)