Electricity Tes...

A wire has resistance of $$\displaystyle 12\Omega $$. It is cut into two parts and both halve are connected in parallel. The new resistance is

A lamp rated $$20W$$ and an electric iron rated $$50W$$ are used for $$2$$ hour everyday. Calculate the total energy consumed in $$20 $$ days.

Which of these units of energy is the largest?

If $$\displaystyle { R }_{ 1 }$$ and $$\displaystyle { R }_{ 2 }$$ are respectively the filament resistance of a $$200 \ W$$ bulb and $$100 \ W$$ bulb designed to operate on the same voltage then

Energy consumed in our house has a unit of

Find the effective resistance when $$\displaystyle 1\Omega ,2\Omega $$ and $$\displaystyle 3\Omega $$ resistances are connected in series

For three resistors connected in series.

A wire of resistance $$12\ ohm$$ per meter is bent to form a complete circle of radius $$10\ cm$$. The resistance b/w its two diametrically opposite points $$A$$ and $$B$$ as shown in the figure is

Watt hour represents:

Unit used in selling electrical energy to consumer is: