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Champ Jee
Subject: Science
, asked on 5/2/18
B represents a magnetic field parallel to the plane of paper west to east (as shown). State whether there will be any induced current in the conductor XY when it moves-
(i) in the direction of B
(ii) perpendicular to B in the plane of the paper
(iii) upwards and perpendicular to the plane of the paper. In each case give the direction of induced current if any and also name the rule applied to determine the direction.
Answer
1
Champ Jee
Subject: Science
, asked on 5/2/18
Write three differences between AC and DC
(For a class 10 student).
Answer
2
Champ Jee
Subject: Science
, asked on 5/2/18
Q14.
Q14. When current flows through a circular loop, its two faces behave like two poles. Justify the statement with diagram. Explain how this polarity changes with change in direction of current.
Answer
1
Dipendu Gupta
Subject: Science
, asked on 5/2/18
Q.27. Which of the following particles will experience maximum magnetic force (magnitude) when projected with the same velocity perpendicular to a magnetic field?
(A) electron
(B) proton
(C)
H
e
+
(D)
L
i
+
+
Answer
2
Son Ser
Subject: Science
, asked on 4/2/18
Plzz fast i have exams2moro. Dont provide any link plzzzzz:
16. A beam of electrons moving alog a straight path due north through the space between the two poles of a house shoe (U+shaped) magnet such that N pole is on the east side and S. pole on the west side of the electron beam. What happens to the beam of electrons? State the relevant law used here. Draw the magnetic lines of force of a U shaped magnet.
Answer
4
Son Ser
Subject: Science
, asked on 4/2/18
Plz. Fast i have exams 2moro
Answer
1
Nihal Kanwar
Subject: Science
, asked on 2/2/18
the resistivity of conductor is less or more than insulator
Answer
1
Son Ser
Subject: Science
, asked on 28/1/18
Plzz fast i have exams 2moro . Dont provide any link plzzzzz
14. A copper coil is connected to a galvanometer. What would happen if a bar magnet is
(i) pushed into the coil with its North pole entering first?
(ii) field at rest inside the coils?
(iii) pulled out again?
Answer
2
Shakshaya
Subject: Science
, asked on 28/1/18
Which type of spherical mirror has a larger feild of view
Answer
4
Champ Jee
Subject: Science
, asked on 28/1/18
Find the minimum rating of fuse
a) in parallel
b) in series
that can be safely used on a line on which two 1.1 kW, electric geysers are to run simultaneously. The supply voltage is 220V.
Answer
1
Champ Jee
Subject: Science
, asked on 28/1/18
Explain why a fuse should be joined with the live wire and not with neutral wire in a domestic circuit.
Answer
3
Champ Jee
Subject: Science
, asked on 28/1/18
Q39 please, it would be grateful if anyone clicks and send a pic how they adjusted their hand or how did they solve it.
Thanks.
Q39. A current I passes through a circular loop C and solenoid AB as shown below :
(i) What is the polarity of : (a) the face of the loop you are looking at ? (b) the end B of the solenoid ?
(ii) What is the direction of the magnetic field at the centre of the loop ?
Answer
1
Champ Jee
Subject: Science
, asked on 28/1/18
Name two types of wiring system adopted for domestic wirings.
Answer
4
Champ Jee
Subject: Science
, asked on 28/1/18
A magnet us moved towards a coil, an emf and charge is induced in it. If the magnet is moved is slowly, how will the new emf and charge be affected?
Answer
2
Champ Jee
Subject: Science
, asked on 28/1/18
Experts it would be kind if you answer all the 6 questions in a single go otherwise I would have to post them separately! Thank you!
Q.1 What produces magnetism in the human body?
Q.2 Name one medical technique which is based on magnetism produced in human body. For what purpose is this technique used?
Q.3 Name two human body organs where magnetism produced is significant.
Q.4 What is the full form of MRI?
Q.5 Name the technique by which doctors can produce pictures showing insides of the human body.
Q.6 Name one technique which can detect cancerous tissue inside the body of a person.
Answer
2
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What are you looking for?
B represents a magnetic field parallel to the plane of paper west to east (as shown). State whether there will be any induced current in the conductor XY when it moves-
(i) in the direction of B
(ii) perpendicular to B in the plane of the paper
(iii) upwards and perpendicular to the plane of the paper. In each case give the direction of induced current if any and also name the rule applied to determine the direction.
(For a class 10 student).
Q14. When current flows through a circular loop, its two faces behave like two poles. Justify the statement with diagram. Explain how this polarity changes with change in direction of current.
(A) electron
(B) proton
(C)
(D)
16. A beam of electrons moving alog a straight path due north through the space between the two poles of a house shoe (U+shaped) magnet such that N pole is on the east side and S. pole on the west side of the electron beam. What happens to the beam of electrons? State the relevant law used here. Draw the magnetic lines of force of a U shaped magnet.
14. A copper coil is connected to a galvanometer. What would happen if a bar magnet is
(i) pushed into the coil with its North pole entering first?
(ii) field at rest inside the coils?
(iii) pulled out again?
a) in parallel
b) in series
that can be safely used on a line on which two 1.1 kW, electric geysers are to run simultaneously. The supply voltage is 220V.
Thanks.
Q39. A current I passes through a circular loop C and solenoid AB as shown below :
(i) What is the polarity of : (a) the face of the loop you are looking at ? (b) the end B of the solenoid ?
(ii) What is the direction of the magnetic field at the centre of the loop ?
Q.1 What produces magnetism in the human body?
Q.2 Name one medical technique which is based on magnetism produced in human body. For what purpose is this technique used?
Q.3 Name two human body organs where magnetism produced is significant.
Q.4 What is the full form of MRI?
Q.5 Name the technique by which doctors can produce pictures showing insides of the human body.
Q.6 Name one technique which can detect cancerous tissue inside the body of a person.