0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

# Draw a labelled diagram to make a soft iron bar as an electromagnet.Describe in steps the procedure.

Solution
Verified by Toppr

#### Usually, the electromagnets are made in two shapes:1) bar or I shaped magnet and 2) horse shoe or U-shaped magnet.1) To make a flar or I shaped electromagnet: Take a soft iron bar PQ and wind a thin insulated copper wire around the car.Connect a cell or battery B, and a key K in series between the ends of the coil.The circuit diagram is shown in fig. When key K is closed, current passes through the winding of the coil and the bar becomes a magnet. As the key K is opened, the current stops flowing in the coil and the bar loses its megnetism. Thus, the bar behaves like an electromagnetic.2) To make a horse shoe or U shaped electromagnetic: Take a U shaped soft iron place.Wind a thin insulated copper wire on its arms such that the winding in the two arms is in opposite direction.In figure winding in the arm A starts from the front and is in clockwise direction.(When seen from the bottom)On reaching the upper end of the arm A winding starts from the back at the top of the arm B and is in anticlockwise direction.Connect a battery B and a key k between the two ends of the wire.

2
Similar Questions
Q1
Draw a labelled diagram to make a soft iron bar as an electromagnet. Describe the procedure in steps.
View Solution
Q2

(a) Draw a circuit diagram to show how a soft iron piece can be transformed into an electromagnet.

(b) Describe how an electromagnet could be used to separate copper from iron in a scrap yard.

View Solution
Q3
Describe an activity along with a labelled diagram the phenomenon o dispersion through prism .mention steps nd draw diagram
View Solution
Q4
(a) Describe the process of nutrition in Amoeba. Draw labelled diagrams to show the various steps in the nutrition in Amoeba.
View Solution
Q5
Describe the various steps involved in the sexual reproduction in animals. Draw labelled diagrams to show the fertilisation of an ovum (or egg) by a sperm to form a zygote.
View Solution