WorksheetsElectrostatics
Total questions: 15
Worksheet time: 8mins
1. Which charge configuration produces a uniform electric field?
Uniformly charged infinite plane
Point charge
Inifiniteuniform line charge
Uniformly charged spherical shell
2. The total electric flux for the following closed surface which is kept inside water
80 q/€o
q/40 €o
q/80 €o
q/160 €o
3. What is the ratio of the charges ( q1/q2 ) for the following electric field line pattern?
11/25
25/11
5/11
1/5
4.Two identical point charges of magnitudes -q are fixed as shown in the figure below. A third charge +q is placed in the midway between the two charges at the point P. Suppose this charge +q is displace a small distance from the point P in the direction indicated by the arrows, in which direction(s) will +q be stable with respect to the displacement?
A1 and A2
B1 and B2
Both directions
No stable
5.An electric dipole is placed at an alignment angle of 300
with an electric field 2 * 105.
NC-1. It experiences a torque equal to 8 N m. The charge of the dipole if the dipole length is 1 cm is
4 mC
8mC
5mC
7mC
6.
D<C<B<A
A<B=C<D
C<A=B<D
D>C>B>A
7.
Less than before
Same as before
More than before
Zero
8.
1 =4 <2 <3
2=4<3<1
2=3<1<4
3<1<2<4
9.
+10V
-20V
+20V
-10V
10.
8.80 * 10 -17. J
-8.80 * 10 -17. J
4.4 x 10 -17. J
5.80 x 10 -17. J
12.
Q ramians the same C is doubled
Q is doubled C doubled
C remains same Q doubled
Both Q and C remain same
13.
Capacitance
Charge
Voltage
Energy density
14.
1 micro fard
2 micro farad
3 micro farad
(1/4) micro farad
15.
3 x 10-2 C
4 x 10-2C
1 x 10-2C
2x 10-2C
