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Ipsita Dash
Subject: Physics
, asked on 4/5/18
Explain point ii).
Q(ii). Note that the electric field
E
due to Q, though defined operationally in terms of some test charge q, is independent of q. This is because
F
is proportional to q, so the ratio
F/q
does not depend on q. The force
F
on the charge q due to the charge Q depends on the particular location of charge q which may take any value in the space around the charge Q. Thus the electric field E due to Q is also dependent on the space coordinate
r
. For different positions of the charge q all over the space, we get different values of electric field
E
. The field exists at every point in three- dimensional space.
Answer
2
Ipsita Dash
Subject: Physics
, asked on 4/5/18
Solve this question and explain each step of the answer. No link please.
Q Example 1.6
Consider three charges q
1
, q
2
, q
3
each equal to q at the vertices of an equilateral triangle of side 1. What is the force on a charge Q (with the same sign as q) placed at the centroid of the triangle, as shown in Fig. 1.9?
Answer
3
Divya Mahesh
Subject: Physics
, asked on 3/5/18
Solve this:
Q73. Two plane sheets of charge densities +
σ
and –
σ
are kept in air as shown in Fig. 1.161. What are the electric field intensities at points A and B?
[CBSE D 03 C]
Answer
2
Sanjukta Biswas
Subject: Physics
, asked on 3/5/18
Is it necessary to mention the two charges are in vaccum in the derivation of coulomb's law in vector form?
Answer
3
Divya Mahesh
Subject: Physics
, asked on 3/5/18
How is Coulomb's force between two charges affected by the presence of a third charge ? If there is no change then please explain why is it so.
Answer
1
Divya Mahesh
Subject: Physics
, asked on 3/5/18
Why the dielectric constant of metals is infinite ?
Answer
2
Ipsita Dash
Subject: Physics
, asked on 3/5/18
A circular loop of radius 'r' , which is made up of an insulating string,is uniformly charged by a charge 'q'. Calculate the tension in the string when a point charge 'q0' is placed at the centre of the loop.
No link, i need answer with explanation please.
Answer
1
Arshak Shan
Subject: Physics
, asked on 3/5/18
Two identical positive charges of +q are 4m apart.What is the magnitude and direction of the electric field at point A, 1m to the right of the left hand charge?
Answer
2
Aishwarya
Subject: Physics
, asked on 3/5/18
Q). A charge Q is placed at a distance 4 m about the centre of horizontal rectangle surface of length and breadth 8 cm and 6 cm respectively. Find the flux passing through the rectangular surface. (it is forming cuboid)
Answer
1
Shreya Choudhary
Subject: Physics
, asked on 2/5/18
Solve this:
Example 16 : Four charges are placed on corners of a square as shown in figure having side 10 cm. If q is 1
μ
C then what will be electric field intensity at the centre of the square?
Answer
2
Tarun Krishnan
Subject: Physics
, asked on 2/5/18
4 point charges Q,q,Q,q are placed at corners of a square of side a , find the A) resultant electric force
B) Potential energy of the system ??
Answer
1
Archit Anand K.p.
Subject: Physics
, asked on 1/5/18
A charge Q is uniformly distributed throughout the volume of a solid hemisphere of radius R find the potential at the center of the hemisphere
Answer
1
Vivek Kumar
Subject: Physics
, asked on 1/5/18
Plzz answer the given questions as per the marking as soon as possible
Answer
1
Aditya
Subject: Physics
, asked on 1/5/18
why test charge should be fixed in electric field??
Answer
1
Palak Srivastava
Subject: Physics
, asked on 1/5/18
Solve this:
Q.4. Find the electric field at centre of semicircular ring shown in figure (change distribution is uniform)
Answer
1
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What are you looking for?
Q(ii). Note that the electric field E due to Q, though defined operationally in terms of some test charge q, is independent of q. This is because F is proportional to q, so the ratio F/q does not depend on q. The force F on the charge q due to the charge Q depends on the particular location of charge q which may take any value in the space around the charge Q. Thus the electric field E due to Q is also dependent on the space coordinate r. For different positions of the charge q all over the space, we get different values of electric field E. The field exists at every point in three- dimensional space.
Q Example 1.6 Consider three charges q1, q2, q3 each equal to q at the vertices of an equilateral triangle of side 1. What is the force on a charge Q (with the same sign as q) placed at the centroid of the triangle, as shown in Fig. 1.9?
Q73. Two plane sheets of charge densities + and – are kept in air as shown in Fig. 1.161. What are the electric field intensities at points A and B?
[CBSE D 03 C]
No link, i need answer with explanation please.
Example 16 : Four charges are placed on corners of a square as shown in figure having side 10 cm. If q is 1 C then what will be electric field intensity at the centre of the square?
B) Potential energy of the system ??
Q.4. Find the electric field at centre of semicircular ring shown in figure (change distribution is uniform)