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How to make the model of an electromagnetic crane?
WHY DOES STEEL IS NOT USED AS THE CORE OF ELECTROMAGNET?
How can we make a simple electric bell ?
explain the construction and working of an electric bell.
what do you mean by the heating effect of electric current?
what do you mean by ISI mark?
WHAT IS KIT KAT FUSE ? PLEASE SHOW DIAGRAM.
Explain the working of an electric bell.
batteries used in tractors, trucks, inverters are also made of cells then why it is called a battery ?
advantages and disadvantages of heating effect of electric current
What is the full form of MCB ? What is its function ?
Rita used a fuse wire with a 100 amperes specification in a circuit at home which draws a maximum current of 20 amperes when all devices in the circuits are switched on. Do you think she used the correct fuse wire? What will you advise her to do?
what are the advantages of MCB over electric fuse ?
what do you mean by earthing??
name 2 devices based on magnetic effect of electric current?
What is the difference between electric current and electric circuit?
When the bulb fuses why does it not glows?
Mention any three causes of excessive current in household circuit.
What is an electric fuse ? How does it work ?
fuse wires or mcb are not used in a circuit containing electric cell.why?
which among the following is the best insulator of electricity
c. dry air
air is not filled in electric bulbs. why? justify your answer.
What is the difference between magnetic effect of electric current and heating effect of electric current?
how to make a working model on transport and communication
can you use copper wire to make the filament of an electric bulb ? why?
what is short circuit ?
what will happen if we use a thick tungsten wire in a electric bulb?
what are the advantages of electromagnets over permanent magnets?give 3 points
please answer fast its very urgent.
what are the causes of greenhouse effect ?
define potential difference
why does the glow electric bulb become warm?
a coil with no current passing through it is suspended freely.it points in the east-west direction.explain what will happen if a current is passed through a coil
3 DIFFERENCES BETWEEN NICHROME AND TUNGSTEN?
WHy CFL are now a day's being used instead of electric bulbs?
what is full form of MCB and CFL
what is electric fuse ?
what is the difference between periodic and repetitive motion?
Whether the batteries used in trucks, tractors and invertors are also made from cells. then why it is called a battery?
how to make a electromagnet
explain the working of an electric bell. Very very urgent
Following questions are from our school SCIENCE book's CHAPTER 11(ELECTRIC CHARGES AT REST) OF DAV CMC, PROVIDED BY OUR SCHOOL. THIS CHAPTER IS NOT AVAILABLE AT OUR MERITNATION SCHOOL.
SO YOU ARE REQUESTED TO KINDLY PROVIDE ME THE ANSWER OF THE QUESTIONS AS MENTIONED BELOW:-
Q1. A glass rod is rubbed against a silk cloth and an ebonite rod is rubbed against a piece of flannel. List the pairs which have (a) similar (b) dissimilar charges on them.
Q2. A chrged drinkinG plastic straw is brought near another similar suspended straw that is (a) also similarly charged (b) uncharged. Explain what we would observe in each case and why.
Q3. Describe a simple experiment to show that the total charge on a pair of objects rubbed together is zero.
Q4. Why do we say that ' charges are always produced in pairs'?
Q5. State advanteages of lightninig.
Q6. Is it important to have a very good contact between the lower end of a lightning conductor and the earth? if so, why?
Q7. A charged object is found to lose its charge when touched. Explain, why?
Q8. What can we say about the sign of the charge acquired by an object when it is charged by a positively charged rod through (i) conduction (ii) induction?
Q9. Can we say that a charged object attracts an uncharged object by first charging it by induction ? Explain your answer.
What is the difference between hard iron and soft iron ?
what is heating effect in electric current ?
Which is the appropriate term used for a liquid or solution which conducts electricity along with some accompanying chemical changes?
Give any 2 advantages of electromagnets over bar magnets.
pls help me to make a physics working model on solar energy
what is the relationship between potential difference and direction of flow corrent in an electric circuit ?
how dose a fire alarm work?
why are MCB's most commonly used in place of fuses?
Explain the working of an electric bell??????? if u guys tell me tjhe right ans then thumbss up.plz do write in detail...........
rajiv's mother was shifting some fine castor sugar for making cake . at first , the sugar fell straight down. But, gradually, more and more sugar was thrown to the sides. why did this divergence happen ?
what is fuse how does it work ???????????????
define electric current
WRITE THE ADVANTAGES AND DISADVANTAGES OF HEATING EFFECT OF ELECTRIC CURRENT.
why is the fuse wire necessary in a circuit?how does it work?
What will happen if a thick copper wire is used as a fuse ?
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