Advertisements
Advertisements
प्रश्न
Which particles are responsible for current in conductors?
Advertisements
उत्तर
Free electrons are responsible for current in conductors.
APPEARS IN
संबंधित प्रश्न
At what frequency is AC supplied to residential houses?
What is the SI unit of electric energy?
State the S.I. unit of electrical power.
State and define the household unit of electricity.
An electric bulb is rated 250 W, 230 V. Calculate:
- the energy consumed in one hour
- the time in which the bulb will consume 1.0 kWh energy when connected to 230 V mains.
Water in an electric kettle connected to a 220 V supply took 5 minutes to reach its boiling point. How long would it have taken if the supply voltage had fallen to 200 V?
Two resistors A and B of 4 Ω and 6 Ω, respectively are connected in parallel. The combination is connected across a 6 volt battery of negligible resistance. Calculate the power dissipated in each resistor.
You are required to connect a bulb, a fan and a socket outlet to the mains in one set A and an air-conditioner and a refrigerator to the mains in other set B. Will you recommend the wire of same thickness and same insulation in both? explain your answer.
An electric bulb is rated as 100W – 250V. What information does it convey? Calculate the current through the filament of the bulb.
A fuse is rated 5 A. Can it be used with a geyser rated 1540 W, 220 V Write Yes or No. Give supporting calculations to justify your answer.
