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Electrical energy consumed= (6x0.1x8) x5= 24kWh
Total cost= 24kWh x sh 2.60= ksh. 62.40
Moraa orina answered the question on April 11, 2018 at 17:50
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Date posted: April 11, 2018. Answers (1)
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Date posted: April 11, 2018. Answers (1)
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Date posted: April 11, 2018. Answers (1)
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Date posted: April 11, 2018. Answers (1)
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A student designed a transformer to supply a current of 10A at a potential difference of 60V to an electric motor from an ac supply of 240V. if the efficiency of the transformer is 80%, calculate:
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b) The current in the primary coil
Date posted: April 11, 2018. Answers (1)
- Calculate the number of turns of the secondary coil of a step down transformer which would enable a 12V bulb
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Date posted: April 11, 2018. Answers (1)
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Date posted: April 11, 2018. Answers (1)
- Arrange the following radiations in order of increasing wavelength: infra red, blue light, UV light, radio
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Date posted: April 11, 2018. Answers (1)
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Date posted: April 11, 2018. Answers (1)
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Date posted: April 11, 2018. Answers (1)
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a) The centripetal...(Solved)
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a) The centripetal acceleration
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Date posted: April 11, 2018. Answers (1)
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Date posted: April 11, 2018. Answers (1)
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The maximum speed at which a motorist can negotiate a corner on a level ground is 20m/s. if the radius
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Date posted: April 11, 2018. Answers (1)
- A bob of mass 1kg is moving in a uniform circular path in a vertical plane of radius 1m. If it is whirled at...(Solved)
A bob of mass 1kg is moving in a uniform circular path in a vertical plane of radius 1m. If it is whirled at a
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a) The tension in the string when the bob is at the top part of the circle
b) Tension when it is at the bottom
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d) What is the minimum speed required to maintain the string under tension.
Date posted: April 11, 2018. Answers (1)
- An object of mass 0.4kg is rotated by a string at a constant speed, v in a vertical circle of radius 1m. If the
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An object of mass 0.4kg is rotated by a string at a constant speed, v in a vertical circle of radius 1m. If the
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a) The speed, v
b) Maximum tension in the string
c) The tension when the string is just horizontal
Date posted: April 11, 2018. Answers (1)
- An object of mass 8kg is whirled round rapidly in a vertical circle of radius 2m with a constant speed of
6m/s. Calculate the maximum...(Solved)
An object of mass 8kg is whirled round rapidly in a vertical circle of radius 2m with a constant speed of
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Date posted: April 11, 2018. Answers (1)
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A stone of mass 0.6kg attached to a string of length 0.5m is whirled in a horizontal circle at a constant
speed. If the maximum tension in the string is 5N before it breaks, calculate:
a) The maximum speed of the stone
b) The maximum number of revolutions per second it can make
Date posted: April 11, 2018. Answers (1)
- A stone of mass 2kg is whirled in a horizontal circle of radius 0.5m. The tension in the string was found to
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Date posted: April 11, 2018. Answers (1)
- Calculate the period and frequency of a particle in a circular path moving at an angular velocity of 4p
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Calculate the period and frequency of a particle in a circular path moving at an angular velocity of 4π
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Date posted: April 11, 2018. Answers (1)
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A car of mass 100kg moves round a circular track of radius 100m with a linear speed of 20m/s. calculate:
a) The angular velocity
b) The centripetal force
c) The centripetal acceleration
Date posted: April 11, 2018. Answers (1)