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Recent questions tagged electro megnetism
+3
votes
1
answer
State two differences between an electromagnet and a permanent magnet.
asked
Mar 22, 2019
in
Class 10
by
kratos
class-10
icse
electro megnetism
+2
votes
1
answer
State two advantages of an electromagnet over a permanent magnet.
asked
Mar 22, 2019
in
Class 10
by
kratos
class-10
icse
electro megnetism
magnetic effect of current
electromagnetism
+3
votes
1
answer
What will be the effect on the working of an electric bell if instead of a direct current an alternating current is used?
asked
Feb 26, 2019
in
Class 10
by
kratos
magnetic effect of current
class-10
icse
electro megnetism
+1
vote
1
answer
Give four differences between an electromagnet and a permanent magnet.
asked
Feb 14, 2019
in
Class 12
by
kratos
class-10
icse
bseb model set
electromagnetism
magnetic effect of current
class-12
electro megnetism
+2
votes
1
answer
Name the material used for making the armature of an electric bell. Give a reason for your answer.
asked
Jan 5, 2019
in
Class 10
by
kratos
class-10
magnetic effect of current
icse
electromagnetism
electro megnetism
+3
votes
1
answer
How is the working of an electric bell affected, if alternating current be used instead of direct current?
asked
Dec 2, 2018
in
Class 10
by
kratos
magnetic effect of current
class-10
icse
electro megnetism
+2
votes
1
answer
Mention the two characteristic properties of the material suitable for making core of a transformer.
asked
Oct 14, 2018
in
Class 12
by
kratos
transformer
neet
cbse
aiims
class-10
icse
magnetism and matter
alternating current
class-12
generator
electro megnetism
+3
votes
1
answer
What material is used for making the armature of an electric bell ? Give a reason for using this material.
asked
Oct 13, 2018
in
Class 10
by
kratos
electricity
class-10
magnetic effect of current
icse
electromagnetism
megnetism
class-7
electro megnetism
+2
votes
1
answer
Write two differences between electromagnet and permanent magnet.
asked
Aug 28, 2018
in
Class 12
by
kratos
class-10
magnetic effect of current
bseb model set
icse
electromagnetism
class-12
electro megnetism
+3
votes
1
answer
State two advantages of an electromagnet over a permanent magnet.
asked
Aug 26, 2018
in
Class 10
by
kratos
class-10
icse
electro megnetism
+3
votes
1
answer
What material is used for making the armature of a electric bell? Give a reason for using this material.
asked
Aug 24, 2018
in
Class 10
by
kratos
electricity
class-10
magnetic effect of current
icse
megnetism
class-7
electromagnetism
electro megnetism
+3
votes
1
answer
For what purpose are transformers used? Can they be used with a direct source?
asked
Aug 5, 2018
in
Class 12
by
kratos
neet
aiims
jee
class-10
icse
electromagnetism
jee mains
alternating current
electro megnetism
+3
votes
1
answer
Name the material of core in (a) electric bell, (b) electromagnet (c) d.c motor, (d) an a.c. generator and (e) transformer.
asked
Jun 24, 2018
in
Class 10
by
kratos
class-10
icse
electro megnetism
+1
vote
1
answer
For what purpose are the transformers used? Can they be used with a direct current source?
asked
Jun 17, 2018
in
Class 10
by
kratos
class-10
icse
electro megnetism
+3
votes
1
answer
Write two differences between electromagnet and permanent magnet.
asked
Jun 6, 2018
in
Class 12
by
kratos
class-10
magnetic effect of current
icse
electromagnetism
class-12
electro megnetism
+1
vote
1
answer
What material is used for making the armature of an electric bell? Give a reason for using this material.
asked
May 21, 2018
in
Class 10
by
kratos
class-10
magnetic effect of current
icse
electromagnetism
electro megnetism
+2
votes
1
answer
State two advantages of an electromagnet over a permanent magnet.
asked
Jan 25, 2018
in
JEE
by
kratos
jee
magnetic field
class-10
icse
magnetic effect of current
electromagnetism
jee mains
electro megnetism
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