KC+CET PYQs for Coulombs Law with Solutions: Practice KCET Previous Year Questions

Updated on - Feb 16, 2026

Coulombs Law is an important topic in the Physics section in KCET exam. Practising this topic will increase your score overall and make your conceptual grip on KCET exam stronger.

This article gives you a full set of KCET PYQs for Coulombs Law with explanations for effective preparation. Practice of KCET Physics PYQs including Coulombs Law questions regularly will improve accuracy, speed, and confidence in the KCET 2026 exam.

KCET PYQs for Coulombs Law with Solutions

1.
Two smalI spheres of masses $M_1 $ and $M_2$ are suspended by weightless insulating threads of lengths $ L_1$ and $ L_2$. The spheres carry charges $Q_1$ and $Q_2$ respectively. The spheres are suspended such that they are in level with one another and the threads are inclined to the vertical at angles of $\theta_1 $ and $\theta_2$ as shown. Which one of the following conditions is essential, if $\theta_1 = \theta_2$ ?
- $ M_1 \ne \, M_2, $ but $Q_1 = Q_2$
- $ M_1= M_2$
- $ Q_1 = Q_2$
- $L_1 = L_2$
View Solution
2.
A point charge A of +10µC and another point charge B of +20µC are kept Im apart in free space. The electrostatic force on A due to B is $\overrightarrow{F_1}$, and the electrostatic force on B due to A is $\overrightarrow{F_2}$. Then
- $\overrightarrow{F_1}=-2\overrightarrow{F_2}$
- $\overrightarrow{F_1}=-\overrightarrow{F_2}$
- $2\overrightarrow{F_1}=-\overrightarrow{F_2}$
- $\overrightarrow{F_1}=\overrightarrow{F_2}$
View Solution
3.
Two identical metal spheres charged with $+12 \mu F$ and $-8 \mu F$ are kept at certain distance in air. They are brought into contact and then kept at the same distance. The ratio of the magnitudes of electrostatic forces between them before and after contact is
- 12:01
- 8:01
- 24:01:00
- 4:01
View Solution
4.
Two equal negative charges $-q$ each are fixed at points $(0, -a)$ and $(0,a)$ on $y-axis$. A positive Charge $Q$ is released from rest at the point $(2a, 0)$ on the $x-axis$. The charge $Q$ will
- execute simple harmonic motion about the origin
- move to the origin and remain at rest
- move to infinity
- execute oscillatory but not simple harmonic motion
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KCET PYQs for Coulombs Law with Solutions: Practice KCET Previous Year Questions

KCET PYQs for Coulombs Law with Solutions

2.
A point charge A of +10µC and another point charge B of +20µC are kept Im apart in free space. The electrostatic force on A due to B is \(\overrightarrow{F_1}\), and the electrostatic force on B due to A is \(\overrightarrow{F_2}\). Then

3.
Two identical metal spheres charged with $+12 \mu F$ and $-8 \mu F$ are kept at certain distance in air. They are brought into contact and then kept at the same distance. The ratio of the magnitudes of electrostatic forces between them before and after contact is

4.
Two equal negative charges $-q$ each are fixed at points $(0, -a)$ and $(0,a)$ on $y-axis$. A positive Charge $Q$ is released from rest at the point $(2a, 0)$ on the $x-axis$. The charge $Q$ will

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KCET PYQs for Coulombs Law with Solutions

2.A point charge A of +10µC and another point charge B of +20µC are kept Im apart in free space. The electrostatic force on A due to B is \(\overrightarrow{F_1}\), and the electrostatic force on B due to A is \(\overrightarrow{F_2}\). Then

3.Two identical metal spheres charged with $+12 \mu F$ and $-8 \mu F$ are kept at certain distance in air. They are brought into contact and then kept at the same distance. The ratio of the magnitudes of electrostatic forces between them before and after contact is

4.Two equal negative charges $-q$ each are fixed at points $(0, -a)$ and $(0,a)$ on $y-axis$. A positive Charge $Q$ is released from rest at the point $(2a, 0)$ on the $x-axis$. The charge $Q$ will

Comments

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2.
A point charge A of +10µC and another point charge B of +20µC are kept Im apart in free space. The electrostatic force on A due to B is \(\overrightarrow{F_1}\), and the electrostatic force on B due to A is \(\overrightarrow{F_2}\). Then

3.
Two identical metal spheres charged with $+12 \mu F$ and $-8 \mu F$ are kept at certain distance in air. They are brought into contact and then kept at the same distance. The ratio of the magnitudes of electrostatic forces between them before and after contact is

4.
Two equal negative charges $-q$ each are fixed at points $(0, -a)$ and $(0,a)$ on $y-axis$. A positive Charge $Q$ is released from rest at the point $(2a, 0)$ on the $x-axis$. The charge $Q$ will