Household Electricity

How are electric bulb rated?

What is the meaning of $220$v $100$W?

What is the wattage rating in bulb?

How is power transmitted from the power generating station to the consumer?

What is the transmission system in power system?

How is power transmitted to the transmission?

How is power transmitted from the power generating station to the consumer?

What is the power rating of electric bulb?

State whether the given statement is True or False :

Kilowatt hour is the unit of power.

Which of the following is an integrating instrument from below:

Are all electric meters the same?

How is power transmitted from the power generating station to the consumer?

Electricity usage of the house is measured by _____.

Four bulbs $B_1$, $B_2$, $B_3$ and $B_4$ of $100 \mathrm{W}$ each are connected to $220 \mathrm{V}$ main as shown in the figure. The reading in an ideal ammeter will be

The electricity supplied to a household by a substation is called the mains supply.

Which one of the following is not a step in the distribution process of electricity?

Correct power rating of bulb used in our country (India):

Bulb ${\mathrm{B}}_1\left(\mathrm{100 }\mathrm{W}–\mathrm{250 }\mathrm{V}\right)$ and bulb ${\mathrm{B}}_2\left(100\mathrm{ }\mathrm{W}\mathrm{ }–\mathrm{ }\mathrm{200 }\mathrm{V}\right)$ are connected across $250\mathrm{ }\mathrm{V}$. What is potential drop across ${\mathrm{B}}_2$?

If voltage across a bulb rated $220 \mathrm{V}$ $100 \mathrm{W}$ drops by $2.5\%$ of its rated value, the percentage of the rated value by which the power would decrease is

Incandescent bulbs are designed keeping in mind that the resistance of their filament increases with the increase in temperature. If at the room temperature $100 \mathrm{W}$, $60 \mathrm{W}$ and $40\hspace{0.17em}\hspace{0.17em}\mathrm{W}$ bulbs have filament resistances $R_{100}$, $R_{60}$ and $R_{40}$ respectively, then the relation between these resistances is