Potential Energy
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359470 The magnitude of work done in placing four charges at the corners of a square of side \({a}\) as shown in the figure, will be
supporting img

1 \({(-4+\sqrt{2}) \dfrac{k q^{2}}{a}}\)
2 \({(4+\sqrt{2}) \dfrac{k q^{2}}{a}}\)
3 \({(4-\sqrt{2}) \dfrac{k q^{2}}{a^{2}}}\)
4 \({(4+\sqrt{2}) \dfrac{k q^{2}}{a^{2}}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359471 The bob of a pendulum has mass \(m = 1\,kg\) and charge \(q = 40\mu C.\) Length of pendulum is \(l = 0.9m.\) The point of suspension also has the same charge \(40\mu C.\) What is the minimum speed that should be imparted to the bob so that it can complete vertical circle?
supporting img

1 \(3\,m/s\)
2 \(6\,m/s\)
3 \(4\,m/s\)
4 \(1\,m/s\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359472 A square of side ‘\(a\)’ has charge \(Q\) at its centre and charge ‘\(q\)’ at one of the corners. The work required to be done in moving the charge ‘\(q\)’ from the corner to the diagonally opposite corner is :

1 \(\frac{{Qq}}{{4\pi {\varepsilon _0}a}}\)
2 \({\rm{Zero}}\)
3 \(\frac{{Qq}}{{2\pi {\varepsilon _0}a}}\)
4 \(\frac{{Qq\sqrt 2 }}{{4\pi {\varepsilon _0}a}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359473 A ball of mass \(1\,g\) and charge \({10^{ - 8}}\,C\) starts from a point \(A\), where potential is \(600\,V\) to the point \(B\), where potential is zero. The velocity of the ball at the point \(B\), is \(20\,cm{s^{ - 1}}\). The velocity of the ball at the point \(A\) will be

1 \(22.8\,cm{s^{ - 1}}\)
2 \(228\,cm{s^{ - 1}}\)
3 \(16.8\;m{s^{ - 1}}\)
4 \(168\;m{s^{ - 1}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359470 The magnitude of work done in placing four charges at the corners of a square of side \({a}\) as shown in the figure, will be
supporting img

1 \({(-4+\sqrt{2}) \dfrac{k q^{2}}{a}}\)
2 \({(4+\sqrt{2}) \dfrac{k q^{2}}{a}}\)
3 \({(4-\sqrt{2}) \dfrac{k q^{2}}{a^{2}}}\)
4 \({(4+\sqrt{2}) \dfrac{k q^{2}}{a^{2}}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359471 The bob of a pendulum has mass \(m = 1\,kg\) and charge \(q = 40\mu C.\) Length of pendulum is \(l = 0.9m.\) The point of suspension also has the same charge \(40\mu C.\) What is the minimum speed that should be imparted to the bob so that it can complete vertical circle?
supporting img

1 \(3\,m/s\)
2 \(6\,m/s\)
3 \(4\,m/s\)
4 \(1\,m/s\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359472 A square of side ‘\(a\)’ has charge \(Q\) at its centre and charge ‘\(q\)’ at one of the corners. The work required to be done in moving the charge ‘\(q\)’ from the corner to the diagonally opposite corner is :

1 \(\frac{{Qq}}{{4\pi {\varepsilon _0}a}}\)
2 \({\rm{Zero}}\)
3 \(\frac{{Qq}}{{2\pi {\varepsilon _0}a}}\)
4 \(\frac{{Qq\sqrt 2 }}{{4\pi {\varepsilon _0}a}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359473 A ball of mass \(1\,g\) and charge \({10^{ - 8}}\,C\) starts from a point \(A\), where potential is \(600\,V\) to the point \(B\), where potential is zero. The velocity of the ball at the point \(B\), is \(20\,cm{s^{ - 1}}\). The velocity of the ball at the point \(A\) will be

1 \(22.8\,cm{s^{ - 1}}\)
2 \(228\,cm{s^{ - 1}}\)
3 \(16.8\;m{s^{ - 1}}\)
4 \(168\;m{s^{ - 1}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359470 The magnitude of work done in placing four charges at the corners of a square of side \({a}\) as shown in the figure, will be
supporting img

1 \({(-4+\sqrt{2}) \dfrac{k q^{2}}{a}}\)
2 \({(4+\sqrt{2}) \dfrac{k q^{2}}{a}}\)
3 \({(4-\sqrt{2}) \dfrac{k q^{2}}{a^{2}}}\)
4 \({(4+\sqrt{2}) \dfrac{k q^{2}}{a^{2}}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359471 The bob of a pendulum has mass \(m = 1\,kg\) and charge \(q = 40\mu C.\) Length of pendulum is \(l = 0.9m.\) The point of suspension also has the same charge \(40\mu C.\) What is the minimum speed that should be imparted to the bob so that it can complete vertical circle?
supporting img

1 \(3\,m/s\)
2 \(6\,m/s\)
3 \(4\,m/s\)
4 \(1\,m/s\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359472 A square of side ‘\(a\)’ has charge \(Q\) at its centre and charge ‘\(q\)’ at one of the corners. The work required to be done in moving the charge ‘\(q\)’ from the corner to the diagonally opposite corner is :

1 \(\frac{{Qq}}{{4\pi {\varepsilon _0}a}}\)
2 \({\rm{Zero}}\)
3 \(\frac{{Qq}}{{2\pi {\varepsilon _0}a}}\)
4 \(\frac{{Qq\sqrt 2 }}{{4\pi {\varepsilon _0}a}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359473 A ball of mass \(1\,g\) and charge \({10^{ - 8}}\,C\) starts from a point \(A\), where potential is \(600\,V\) to the point \(B\), where potential is zero. The velocity of the ball at the point \(B\), is \(20\,cm{s^{ - 1}}\). The velocity of the ball at the point \(A\) will be

1 \(22.8\,cm{s^{ - 1}}\)
2 \(228\,cm{s^{ - 1}}\)
3 \(16.8\;m{s^{ - 1}}\)
4 \(168\;m{s^{ - 1}}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359470 The magnitude of work done in placing four charges at the corners of a square of side \({a}\) as shown in the figure, will be
supporting img

1 \({(-4+\sqrt{2}) \dfrac{k q^{2}}{a}}\)
2 \({(4+\sqrt{2}) \dfrac{k q^{2}}{a}}\)
3 \({(4-\sqrt{2}) \dfrac{k q^{2}}{a^{2}}}\)
4 \({(4+\sqrt{2}) \dfrac{k q^{2}}{a^{2}}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359471 The bob of a pendulum has mass \(m = 1\,kg\) and charge \(q = 40\mu C.\) Length of pendulum is \(l = 0.9m.\) The point of suspension also has the same charge \(40\mu C.\) What is the minimum speed that should be imparted to the bob so that it can complete vertical circle?
supporting img

1 \(3\,m/s\)
2 \(6\,m/s\)
3 \(4\,m/s\)
4 \(1\,m/s\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359472 A square of side ‘\(a\)’ has charge \(Q\) at its centre and charge ‘\(q\)’ at one of the corners. The work required to be done in moving the charge ‘\(q\)’ from the corner to the diagonally opposite corner is :

1 \(\frac{{Qq}}{{4\pi {\varepsilon _0}a}}\)
2 \({\rm{Zero}}\)
3 \(\frac{{Qq}}{{2\pi {\varepsilon _0}a}}\)
4 \(\frac{{Qq\sqrt 2 }}{{4\pi {\varepsilon _0}a}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359473 A ball of mass \(1\,g\) and charge \({10^{ - 8}}\,C\) starts from a point \(A\), where potential is \(600\,V\) to the point \(B\), where potential is zero. The velocity of the ball at the point \(B\), is \(20\,cm{s^{ - 1}}\). The velocity of the ball at the point \(A\) will be

1 \(22.8\,cm{s^{ - 1}}\)
2 \(228\,cm{s^{ - 1}}\)
3 \(16.8\;m{s^{ - 1}}\)
4 \(168\;m{s^{ - 1}}\)