High resistance takes very little current
joseph rimiru answered the question on October 10, 2017 at 17:33
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What is Nuclear fission?
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What is Nuclear fission?
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October 10, 2017
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Define Nuclide
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Define Nuclide
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October 10, 2017
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Explain two dangers of electromagnetic waves.
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Explain two dangers of electromagnetic waves.
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October 10, 2017
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State four Properties of electromagnetic waves
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State four Properties of electromagnetic waves
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October 10, 2017
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State four applications of X-rays in industries.
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State four applications of X-rays in industries.
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October 10, 2017
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State the dangers of X-rays to human body
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State the dangers of X-rays to human body.
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October 10, 2017
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October 10, 2017
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State the properties of X-rays
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October 10, 2017
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State one use of a CRO
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State one use of a CRO
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October 10, 2017
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State four advantages of a C.R.O as a voltmeter.
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State four advantages of a C.R.O as a voltmeter.
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October 10, 2017
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State four properties of cathode rays
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State four properties of cathode rays
Date posted:
October 10, 2017
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State four sources of mains electricity
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State four sources of mains electricity
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October 10, 2017
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An electrical heater rated 240 v, 2000 w is to be connected to a 240 v mains supply through a fuse of 9.0 A. ...
(Solved)
An electrical heater rated 240 v, 2000 w is to be connected to a 240 v mains supply through a fuse of 9.0 A. Will the fuse be suitable? Give a reason.
Date posted:
October 9, 2017
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Answers (1)
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A n electric bulb rated, 4W is operating on a 240 v mains. Determine the filament’s resistance.
(Solved)
A n electric bulb rated, 4W is operating on a 240 v mains. Determine the filament’s resistance.
Date posted:
October 9, 2017
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Answers (1)
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A capacitor is connected to the distributor in some petrol engines which use spark plugs. What is its function?
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A capacitor is connected to the distributor in some petrol engines which use spark plugs. What is its function?
Date posted:
October 9, 2017
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What does polarization show in light?
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What does polarization show in light?
Date posted:
October 9, 2017
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State two conditions under which Ohm’s law is obeyed in a given metal.
(Solved)
State two conditions under which Ohm’s law is obeyed in a given metal.
Date posted:
October 9, 2017
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If the p.d. of 0.75 v is applied at the end of a wire of length 1.0 m long with a cross-sectional area of 1.6...
(Solved)
If the p.d. of 0.75 v is applied at the end of a wire of length 1.0 m long with a cross-sectional area of 1.6 x 10^-4 m^2 and a current of 1.4 A flow through it. Calculate its resistivity.
Date posted:
October 9, 2017
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Answers (1)
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Given that the resistance of a wire is 1 ohm. Its resistivity is 5.0 x 10^-7 ohms and its cross- sectional area is 4.0...
(Solved)
Given that the resistance of a wire is 1 ohm. Its resistivity is 5.0 x10^-7 ohms and its cross- sectional area is 4.0 x 10 -6 m^2. Find its length.
Date posted:
October 9, 2017
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Answers (1)
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A sliding body on an inclined plane is affected by some factors. Name two factors.
(Solved)
A sliding body on an inclined plane is affected by some factors. Name two factors.
Date posted:
October 9, 2017
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Answers (1)