ARMY PUBLIC SCHOOL GOLCONDA
WORK SHEET-I
PHYSICS
PHYSICS
XII
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1.
A charge of -2 x 10-6 C
experiences a force of 0.08 N [left]. What is the electric field at that point?
2.
A charge of +3.0 x 10-6 C
is 0.25 m away from a charge of -6.0 x 10-6C.
a. What is the force on the 3.0 x 10-6 C charge?
b. What is the force on the -6.0 x 10-6 C charge?
a. What is the force on the 3.0 x 10-6 C charge?
b. What is the force on the -6.0 x 10-6 C charge?
3.
Three charges, q1 = 4 x 10-6 C, q2 = -2
x 10-6 C, and q3 = 5 x 10-6 C are
placed at the corners
of a square with sides 0.30 m. What is the field
at the fourth corner?
4. Four point charges form the vertices of a square
with sides = L. Two diagonally opposite charges have a charge of 2√2 μC each.
The other two charges are identical to each other and each has a charge, q. If
there is no net force on either of the 2√2 μC points, what is the value of q?
5. Two point charges
lie on the x-axis. A charge of +9 μC is
at the origin, and a charge of -4 μC is at x=10cm.
a. At what position
x would a third charge q3 be in equilibrium?
b. Does your answer to part a depend on whether q3 is positive or negative? Explain.
b. Does your answer to part a depend on whether q3 is positive or negative? Explain.
6. Four particles
each with a positive charge of q are placed on the vertices of a square having
sides L. A fifth particle with a positive charge Q is placed at the center of
the square. What is the force on the particle at the center of the square?
7. A charge of
6.00*10-9 C and a charge of -3.00*10-9 C are separated by
a distance of 60.0 cm. Find the position at which a third charge of 12.0*10-9
C can be placed so that the net electrostatic force on it is zero.
8. Two charges, +q
and 4q, are 1 m apart. What are the location, magnitude and sign of a third
charge, Q, placed so that the entire system is at equilibrium?
9. A +2.0 μC charge is located on the x-axis
at +0.3 m and another at -0.3 m. A third charge, +4.0 μC, is located on the
y-axis at +0.4m. Find
a. the net force on the third charge
b. the electric field at (0,-0.4m)
Date of submission: 3rd
April in separate note book standard: easy
PRACTICE MAKES MAN PERFECT
Nice sir...
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