Electric Power

How many $60 \mathrm{W}$ bulbs may be safely run on $220 \mathrm{V}$ using a $5 \mathrm{A}$ fuse?

Is power directly proportional to resistance or inversely proportional to resistance?

Watt is the unit of electric _____.

Which of the following is a unit of electric power?

Two electric bulbs A and B are marked $60 \mathrm{W}, 220 \mathrm{V}$ and $100 \mathrm{W}, 220 \mathrm{V}$ respectively. Which one of the two bulbs has greater resistance?

What is meant by power rating of an electrical appliance? A bulb is rated as $60 \mathrm{W}$, $220 \mathrm{V}$. What does it indicate?

It would cost a man $\mathrm{Rs}. 3.50$ to buy $1.0 \mathrm{kWh}$ of electrical energy from the Main Electricity Board. His generator has a maximum power of $2.0 \mathrm{kW}$. The generator produces energy at this maximum power for $3$ hours. Calculate how much it would cost to buy the same amount of energy from the Main Electricity Board.

Which term does not represent electric power?

Two bulbs A and B are rated $100 \mathrm{W},120 \mathrm{V}$ and $10 \mathrm{W}, 120 \mathrm{V}$ respectively. They are connected across a $120 \mathrm{V}$source in series. Which bulb will consume more power?

The resistance of a bulb marked $\text{'}220 \mathrm{V}, 10 \mathrm{W}\text{'}$ is

An Electric motor takes $37.5$ Amp to start. Then its efficiency is_____. (The voltage of the domestic power supply is $200 \mathrm{V}$)

An electric bulb has rating of $30 \mathrm{W}, 12 \mathrm{V}$. The maximum current that can pass through it will be :

The maximum number of $60 \mathrm{W}$ bulbs that can be run from the main supply of $220 \mathrm{V}$ if you do not want to overload a $5 \mathrm{A}$ fuse:

Electrical power is given by

A household consumes $1 \mathrm{kwh}$  of energy per day. This energy in joules is:

How much time will be taken by a $100 \mathrm{W}$ bulb to consume one unit of energy?

Which formula is not correct for $R$? $(R=$resistance)

How are electric bulb rated?

What is the meaning of $220$v $100$W?

What is the wattage rating in bulb?