MEDIUM
12th CBSE
IMPORTANT
Earn 100

Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?

Question Image

Suppose that a particle is attracted towards the positive plate: what must the charge on it be?

Important Questions on Electric Charges and Field

EASY
12th CBSE
IMPORTANT

Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?

Question Image

Suppose, two particles have identical curved trajectories. Which of the following are necessarily true?

EASY
12th CBSE
IMPORTANT

Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?

Question Image

You are given the initial velocity v of a beam particle and the length of the capacitor l. What other measurement would enable one to find em?

EASY
12th CBSE
IMPORTANT

Figure shows three different patterns of electric field lines. In each pattern, a proton is released from rest at point P and then accelerated towards the point Q by the electric field. Rank the patterns according to the linear momentum of the proton when it reaches Q, greatest first.

Question Image

EASY
12th CBSE
IMPORTANT
Plot a graph showing the variation of coulomb force (F) versus 1r2 where r is the distance between the two charges of each pair of charges: (1μC, 2μC) and (2μC, 3μC) Interpret the graphs obtained.
EASY
12th CBSE
IMPORTANT
Two point charges, q1 and q2 are located at points (a, 0, 0) and (0, b, 0) respectively. Find the electric field, due to both these charges, at the point (0, 0, c).
EASY
12th CBSE
IMPORTANT

Four point charges are placed at the four corners of a square in the two ways (i) and (ii) as shown in Fig.  Will the electric field at the centre of the square, be the same or different in the two configurations and why?

Question Image 

EASY
12th CBSE
IMPORTANT

Four point charges are placed at the four corners of a square in the two ways (i) and (ii) as shown in Fig. Will the electric potential, at the centre of the square, be the same or different in the two configurations and why?

Question Image 

EASY
12th CBSE
IMPORTANT

Three charges+q , +q and -2q are placed at the vertices of an equilateral triangle. What is the dipole moment of the system?

Question Image