CRT-------CRO
Deflection is caused by magnetic field---deflection is caused by electric field
Has two time bases---Has onetime base.
Produces 625 times per second---produce 25 lines per second.
joseph rimiru answered the question on December 4, 2017 at 20:07
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The follow table shows electric appliances to be used in a home. The electrical rating for each appliance is shown. The fuses available are 5A,...
(Solved)
9. The follow table shows electric appliances to be used in a home. The electrical rating for each appliance is shown. The fuses available are 5A, 15A, 30A and 45 A
Appliance-----voltage(V)-----Power(w)
T.V.----------240----------300
Iron box------240----------720
Electrical kettle--240----2400
Determine which one of the fuses is suitable for the house.
Date posted:
December 4, 2017
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Answers (1)
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Heating in the coils when current flows is one of the causes of energy loss in a transformer. State : (i) The reason why the current causes...
(Solved)
Heating in the coils when current flows is one of the causes of energy loss in a transformer. State :
(i) The reason why the current causes heating.
(ii)How the heating can be minimized.
Date posted:
December 4, 2017
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Answers (1)
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The primary coil of a transformer has 2000 turns and secondary coil is connect to a 240V a.c. mains supply (a) Explain how an e.m.f. is...
(Solved)
The primary coil of a transformer has 2000 turns and secondary coil is connect to a 240V a.c. mains supply.
(a)Explain how an e.m.f. is induced in the secondary voltage.
(b)Determine the secondary voltage
Date posted:
December 4, 2017
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Answers (1)
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In a transformer the ratio of primary to secondary is 1:10. A current of 200mA flow through a 200 ohm resistor in the secondary circuit....
(Solved)
In a transformer the ratio of primary to secondary is 1:10. A current of 200mA flow through a 200 ohm resistor in the secondary circuit. Assuming that the transformer is 100% efficient, determine:
a. The secondary voltage.
b. The primary voltage.
c. The primary current.
Date posted:
December 4, 2017
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Answers (1)
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Electric power is transmitted over long distance at high voltage. Explain.
(Solved)
Electric power is transmitted over long distance at high voltage. Explain.
Date posted:
December 4, 2017
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Answers (1)
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Explain how the energy losses are reduced in a transform by having : (a) A soft iron core (b) A laminated core
(Solved)
Explain how the energy losses are reduced in a transform by having :
a. A soft iron core
b. A laminated core
Date posted:
December 4, 2017
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Answers (1)
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State the five terms of the semi empirical mass formula.
(Solved)
State the five terms of the semi empirical mass formula.
Date posted:
November 30, 2017
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Answers (1)
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What is a transistor?
(Solved)
What is a transistor?
Date posted:
November 30, 2017
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Answers (1)
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State the two purposes of the iron core in AC transformer.
(Solved)
State the two purposes of the iron core in AC transformer.
Date posted:
November 30, 2017
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Answers (1)
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State two drawbacks of Thomson's Atomic model.
(Solved)
This is under Atomic Physics
Date posted:
November 29, 2017
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Answers (1)
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State three types of chemical bonding.
(Solved)
This is under solid state Physics.
Date posted:
November 29, 2017
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Answers (1)
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List five applications of friction
(Solved)
List five applications of friction
Date posted:
November 27, 2017
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Answers (1)
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What is friction?
(Solved)
What is friction?
Date posted:
November 27, 2017
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Answers (1)
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State the law of conservation of linear momentum
(Solved)
State the law of conservation of linear momentum
Date posted:
November 27, 2017
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Answers (1)
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State Newton’s third law (law of interaction)
(Solved)
State Newton’s third law (law of interaction)
Date posted:
November 27, 2017
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Answers (1)
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What is dispersion of white light?
(Solved)
What is dispersion of white light?
Date posted:
November 27, 2017
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Answers (1)
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Explain the effects of total internal reflection
(Solved)
Explain the effects of total internal reflection.
Date posted:
November 27, 2017
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Answers (1)
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Explain what total internal reflection is.
(Solved)
Explain what total internal reflection is.
Date posted:
November 27, 2017
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Answers (1)
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State the law of reversibility.
(Solved)
State the law of reversibility.
Date posted:
November 27, 2017
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Answers (1)
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State two factors which affect frictional force of a body
(Solved)
State two factors which affect frictional force of a body
Date posted:
November 27, 2017
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Answers (1)