In order to remove the error of parallax when talking measurements with a metre rule,…
In order to remove the error of parallax when talking measurements with a metre rule, the eye should…
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Calculate the energy of the third level of an atom if the ground state energy…
Calculate the energy of the third level of an atom if the ground state energy is – 24.8eV…
The particle nature of light is demonstrated by the
The particle nature of light is demonstrated by the A. photoelectric effect B. speed of light C. colours…
Induced emfs are best explained using
Induced emfs are best explained using A. Ohm’s law B. Faraday’s law C. Colomb’s law D. Lenz’s law…
To convert a galvanometer to a voltmeter, a
To convert a galvanometer to a voltmeter, a A. high resistance is connected to it in series B.…
If a current of 2.5A flows through an electrolyte for 3 hours and 1.8g of…
If a current of 2.5A flows through an electrolyte for 3 hours and 1.8g of a substance is…
A house has ten 40W and five 100W bulbs. How much will it cost the…
A house has ten 40W and five 100W bulbs. How much will it cost the owner of the…
An electric device is rated 2000W, 250V. Calculate the maximum current it can take
An electric device is rated 2000W, 250V. Calculate the maximum current it can take A. 9A B. 8A…
When a charge moves through an electric circuit in the direction of an electric force,…
When a charge moves through an electric circuit in the direction of an electric force, it A. gains…
Calculate the force acting on an electron of charge 1.5 x 10-19C placed in an…
Calculate the force acting on an electron of charge 1.5 x 10-19C placed in an electric field of…