Home
Class 10
PHYSICS
A domestic electrical appliance requires...

A domestic electrical appliance requires alternating current of 15 V. If 220 V of alternating current is supplied to the house, then the device that helps in the functioning of that electri.cal appliance is :

A

induction coil

B

step-up transformer

C

AC dynamo

D

step-down transformer

Text Solution

Verified by Experts

induction coil
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    OSWAAL PUBLICATION|Exercise TOPIC-2 (VERY SHORT ANSWER TYPE QUESTIONS)|11 Videos
  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    OSWAAL PUBLICATION|Exercise TOPIC-2 (SHORT ANSWER TYPE QUESTIONS - I)|7 Videos
  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    OSWAAL PUBLICATION|Exercise TOPIC -1 (LONG ANSWER TYPE QUESTIONS)|22 Videos
  • LIGHT-REFLECTION AND REFRACTION

    OSWAAL PUBLICATION|Exercise NCERT CORNER (TEXTBOOK EXERCISES)|15 Videos
  • SOURCES OF ENERGY

    OSWAAL PUBLICATION|Exercise NCERT CORNER (TEXTBOOK EXERCISES)|10 Videos

Similar Questions

Explore conceptually related problems

Why is an alternating current advantageous over a direct current for long-range transmission of electric energy ?

Why is an alternating current advantageous over a direct current for long-range transmission of electric energy ?

An electric bulb is connected to a 220 V generator. The current is 0.5 A. What is the power of the bulb ?

Calculate the current and resistance of a 100 W, 200V electric bulb.

An electric lamp is marked 100 W, 220 V. If it operates at 200 V, the current through it will be :

a) State the principle of an electric generator b) Write the difference between direct current and alternating current.

a) State the principle of an electric generator b) Write the difference between direct current and alternating current.

a) State the principle of an electric generator b) Write the difference between direct current and alternating current.

An electric heater is used on 220 V supply and takes a current of 5A. What is ita power ? Calculate the per hour cost of using the beater if 1 unit costs Rs 6.0.

{:("Column- A ","Column - B "),("A] Commutator","i] detects the presence of electric current in a circuit."),("B] Fuse","ii] converts mechanical energy into electrical energy"),("C] Galvanometer","iii] measures the potential difference"),("D] Electric generator","iv] shows the direction of the motion of the conductor"),(,"v] protects the electrical appliances"),(,"vi] reverses the direction of current"),(,"viii] converts electrical energy into mechanical energy"):}