20 numericals on couloms law for class 12
Answers
Answered by
1
Hay mate I m giving you some numerical not 20
1. The force between two identical charges separated by 1 cm is equal to 90 N. What is the magnitude of the two charges?
2. Two point charges having equal charges separated by lm distance experience a force of 8 N. What will be the force experienced by them if they are held in water at the same distance? (Given, Kwater = 80).
3. An electric dipole of length 4 cm when placed with its axis making an angle of 60° with a uniform electric field, experiences a torque of 4 root 3 Nm. Calculate the potential energy of the dipole if it has charge ± 8 nC.
4. Two point charges, QA = +8 μC and QB = -5 μC, are separated by a distance r = 10 cm. What is the magnitude of the electric force. The constant k = 8.988 x 109Nm2C−2 = 9 x 109 Nm2C−2.
5. Two charged particles as shown in figure below. QP = +10 μC and Qq = +20 μCare separated by a distance r = 10 cm. What is the magnitude of the electrostatic force.
6. Three charged particles are arranged in a line as shown in figure below. Charge A = -5 μC, charge B = +10 μC and charge C = -12 μC. Calculate the net electrostatic force on particle B due to the other two charges.
7. +Q1 = 10 μC, +Q2 = 50 μC and Q3 are separated as shown in the figure below. What is the electrostatic charge on particle 3 if the net electrostatic force on particle 2 is zero.
1. The force between two identical charges separated by 1 cm is equal to 90 N. What is the magnitude of the two charges?
2. Two point charges having equal charges separated by lm distance experience a force of 8 N. What will be the force experienced by them if they are held in water at the same distance? (Given, Kwater = 80).
3. An electric dipole of length 4 cm when placed with its axis making an angle of 60° with a uniform electric field, experiences a torque of 4 root 3 Nm. Calculate the potential energy of the dipole if it has charge ± 8 nC.
4. Two point charges, QA = +8 μC and QB = -5 μC, are separated by a distance r = 10 cm. What is the magnitude of the electric force. The constant k = 8.988 x 109Nm2C−2 = 9 x 109 Nm2C−2.
5. Two charged particles as shown in figure below. QP = +10 μC and Qq = +20 μCare separated by a distance r = 10 cm. What is the magnitude of the electrostatic force.
6. Three charged particles are arranged in a line as shown in figure below. Charge A = -5 μC, charge B = +10 μC and charge C = -12 μC. Calculate the net electrostatic force on particle B due to the other two charges.
7. +Q1 = 10 μC, +Q2 = 50 μC and Q3 are separated as shown in the figure below. What is the electrostatic charge on particle 3 if the net electrostatic force on particle 2 is zero.
Similar questions