Electric field lines represent the electric field present in a region. The electrostatic field between a test charge and a charged body is represented by the electric field lines that exist between them. Electric field lines never cross each other and point from positive toward negative charge. They do not form closed loops and always start from a positive charge and end on a negative charge.
The correct answer is C.
Please explain how option C is incorrect ! Because I think it would be D....
24. A block of mass 3kg is connected with two identical massless springs A and B and a block mass 2kg is hanging with a third identical spring C as shown in figure then the magnitude of acceleration of 3kg and 2kg block just after cutting the spring A
(1)
(2)
(3) m = 0
(4) m = M
1) (q1 + q2 +...+qn)/2
2) (q1 + q2 +---+qn)/n
3) 0
4) none
thet 3 identical resistors R1,R2 and R3 are connected to a battery as shown in the fig. what wil b d ratio of voltages across R1 andR2?
Q.88. The heat generated in the circuit after closing the switch is
(1)
(2)
(3) 2
(4) Zero
what is N=nNa
13. The figure shown below shows a uniform spherical shell containing a short dipole placed at its centre.
a. The flux of the electric field through the sphere
b. The electric field is zero at every point of the sphere
c. The electric field is not zero anywhere on the sphere
Choose the correct statement(s).
(1) Only b (2) only a
(3) Both a & c (4) Both a & b
Which of the following statements about electric field lines is incorrect?
They never cross each other
They always form closed loops
They point from positive toward negative charges
They point away from positive as well as negative charges
Solution
Electric field lines represent the electric field present in a region. The electrostatic field between a test charge and a charged body is represented by the electric field lines that exist between them. Electric field lines never cross each other and point from positive toward negative charge. They do not form closed loops and always start from a positive charge and end on a negative charge.
The correct answer is C.
Please explain how option C is incorrect ! Because I think it would be D....
Name the physical quantity whose SI unit is Newton Coulomb-1.
Sr.No Capacitor Area of plates Separation
between the plates Medium between
the plates 1 P A D Medium of Er ---4 2 Q 2A D/2 air 3 R 2A D Medium of Ex =2