Electrostatics
Test set 2
Full marks: 40
Time: 10 Minutes
Each right answer contains +4 and Wrong answer -1 marks.
1.
Three capacitors each of capacitance C and of breakdown voltage V are joined in series. The capacitance and breakdown voltage of the combination will be: AIPMT 2009
C/3, 3V
2.
A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates __________. CBSE AIPMT 2006
decreases
3.
Two small spheres each carrying a charge q are placed r metre apart. If one of the spheres is taken around the other one in a circular path of radius r, the work done will be equal to: CPMT 91, 2001
Force between them × 2πr
4.
A simple pendulum of period T has a metal bob which is negatively charged. If it is allowed to oscillate above a positively charged metal plate, its period will: CBSE PMT 2001
Infinite
5.
Three capacitors each of capacity 4 µF are to be connected in such a way that the effective capacitance is 6 µF. This can be done by __________. CBSE AIPMT 2003
connecting two in parallel and one in series
6.
An electric dipole is kept in non - uniform electric field. It experiences __________.
A force but not a torque
7.
Some charge is being given to a conductor, then its potential is CBSE AIPMT 2002
same throughout the conductor
8.
When one electron is taken towards the other electron, then the electric potential energy of the system __________. CBSE PMT 1993
Increases
9.
The formation of a dipole is due to two equal and dissimilar point charges placed at a __________.CBSE AIPMT 1996
long distance
10.
When a proton is accelerated through 1 V, then its kinetic energy will be: CBSE PMT 1999
0.54 eV
Score
