Potential Energy
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359465 Two small charged blocks of charges \(5\mu C\;and\;3\mu C\) are kept on a rough surface \((\mu = 0.5)\) at a separation of 0.1 \(m\). Find the separation between the two blocks when they come to rest.
supporting img

1 \(0.27\,m\)
2 \(0.17\,m\)
3 \(1.2\,m\)
4 \(0.45\,m\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359466 A hot filament liberates an electron with zero initial velocity. The anode potential is 1200 \(V\). The speed of the electron when it strikes the anode is

1 \(2.1 \times {10^7}m\,{s^{ - 1}}\)
2 \(2.5 \times {10^8}m\,{s^{ - 1}}\)
3 \(1.5 \times {10^5}m\,{s^{ - 1}}\)
4 \(2.5 \times {10^6}m\,{s^{ - 1}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359467 Four equal charges \(q\) each are placed at four corners of a square of side \(a\) each. Work done in carrying a charge \(-q\) from its centre to infinity is

1 zero
2 \(\dfrac{\sqrt{2} q}{\pi \varepsilon_{0} a}\)
3 \(\dfrac{q^{2}}{2 \pi \varepsilon_{0} a}\)
4 \(\dfrac{\sqrt{2} q^{2}}{\pi \varepsilon_{0} a}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359468 In the following diagram the work done in moving an isolated point charge from point \(P\) to point \(A\), \(B\) and \(C\) is respectively as \({W_A},{W_B}\) and \({W_C}\), then
supporting img

1 \({W_A} < {W_B} < {W_C}\)
2 \({W_A} = {W_B} = {W_C} = 0\)
3 \({W_A} = {W_B} \ne {W_C}\)
4 \({W_A} > {W_B} > {W_C}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359469 A charged particle \(q\) is shot with speed \(v\) towards another fixed charged particle \(Q\). It approaches \(Q\) upto a closest distance \(r\) and then returns. If \(q\) were given a speed \(2 v\), the closest distance of approach would be
supporting img

1 \(r\)
2 \(2 r\)
3 \(r / 2\)
4 \(r / 4\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359465 Two small charged blocks of charges \(5\mu C\;and\;3\mu C\) are kept on a rough surface \((\mu = 0.5)\) at a separation of 0.1 \(m\). Find the separation between the two blocks when they come to rest.
supporting img

1 \(0.27\,m\)
2 \(0.17\,m\)
3 \(1.2\,m\)
4 \(0.45\,m\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359466 A hot filament liberates an electron with zero initial velocity. The anode potential is 1200 \(V\). The speed of the electron when it strikes the anode is

1 \(2.1 \times {10^7}m\,{s^{ - 1}}\)
2 \(2.5 \times {10^8}m\,{s^{ - 1}}\)
3 \(1.5 \times {10^5}m\,{s^{ - 1}}\)
4 \(2.5 \times {10^6}m\,{s^{ - 1}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359467 Four equal charges \(q\) each are placed at four corners of a square of side \(a\) each. Work done in carrying a charge \(-q\) from its centre to infinity is

1 zero
2 \(\dfrac{\sqrt{2} q}{\pi \varepsilon_{0} a}\)
3 \(\dfrac{q^{2}}{2 \pi \varepsilon_{0} a}\)
4 \(\dfrac{\sqrt{2} q^{2}}{\pi \varepsilon_{0} a}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359468 In the following diagram the work done in moving an isolated point charge from point \(P\) to point \(A\), \(B\) and \(C\) is respectively as \({W_A},{W_B}\) and \({W_C}\), then
supporting img

1 \({W_A} < {W_B} < {W_C}\)
2 \({W_A} = {W_B} = {W_C} = 0\)
3 \({W_A} = {W_B} \ne {W_C}\)
4 \({W_A} > {W_B} > {W_C}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359469 A charged particle \(q\) is shot with speed \(v\) towards another fixed charged particle \(Q\). It approaches \(Q\) upto a closest distance \(r\) and then returns. If \(q\) were given a speed \(2 v\), the closest distance of approach would be
supporting img

1 \(r\)
2 \(2 r\)
3 \(r / 2\)
4 \(r / 4\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359465 Two small charged blocks of charges \(5\mu C\;and\;3\mu C\) are kept on a rough surface \((\mu = 0.5)\) at a separation of 0.1 \(m\). Find the separation between the two blocks when they come to rest.
supporting img

1 \(0.27\,m\)
2 \(0.17\,m\)
3 \(1.2\,m\)
4 \(0.45\,m\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359466 A hot filament liberates an electron with zero initial velocity. The anode potential is 1200 \(V\). The speed of the electron when it strikes the anode is

1 \(2.1 \times {10^7}m\,{s^{ - 1}}\)
2 \(2.5 \times {10^8}m\,{s^{ - 1}}\)
3 \(1.5 \times {10^5}m\,{s^{ - 1}}\)
4 \(2.5 \times {10^6}m\,{s^{ - 1}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359467 Four equal charges \(q\) each are placed at four corners of a square of side \(a\) each. Work done in carrying a charge \(-q\) from its centre to infinity is

1 zero
2 \(\dfrac{\sqrt{2} q}{\pi \varepsilon_{0} a}\)
3 \(\dfrac{q^{2}}{2 \pi \varepsilon_{0} a}\)
4 \(\dfrac{\sqrt{2} q^{2}}{\pi \varepsilon_{0} a}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359468 In the following diagram the work done in moving an isolated point charge from point \(P\) to point \(A\), \(B\) and \(C\) is respectively as \({W_A},{W_B}\) and \({W_C}\), then
supporting img

1 \({W_A} < {W_B} < {W_C}\)
2 \({W_A} = {W_B} = {W_C} = 0\)
3 \({W_A} = {W_B} \ne {W_C}\)
4 \({W_A} > {W_B} > {W_C}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359469 A charged particle \(q\) is shot with speed \(v\) towards another fixed charged particle \(Q\). It approaches \(Q\) upto a closest distance \(r\) and then returns. If \(q\) were given a speed \(2 v\), the closest distance of approach would be
supporting img

1 \(r\)
2 \(2 r\)
3 \(r / 2\)
4 \(r / 4\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359465 Two small charged blocks of charges \(5\mu C\;and\;3\mu C\) are kept on a rough surface \((\mu = 0.5)\) at a separation of 0.1 \(m\). Find the separation between the two blocks when they come to rest.
supporting img

1 \(0.27\,m\)
2 \(0.17\,m\)
3 \(1.2\,m\)
4 \(0.45\,m\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359466 A hot filament liberates an electron with zero initial velocity. The anode potential is 1200 \(V\). The speed of the electron when it strikes the anode is

1 \(2.1 \times {10^7}m\,{s^{ - 1}}\)
2 \(2.5 \times {10^8}m\,{s^{ - 1}}\)
3 \(1.5 \times {10^5}m\,{s^{ - 1}}\)
4 \(2.5 \times {10^6}m\,{s^{ - 1}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359467 Four equal charges \(q\) each are placed at four corners of a square of side \(a\) each. Work done in carrying a charge \(-q\) from its centre to infinity is

1 zero
2 \(\dfrac{\sqrt{2} q}{\pi \varepsilon_{0} a}\)
3 \(\dfrac{q^{2}}{2 \pi \varepsilon_{0} a}\)
4 \(\dfrac{\sqrt{2} q^{2}}{\pi \varepsilon_{0} a}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359468 In the following diagram the work done in moving an isolated point charge from point \(P\) to point \(A\), \(B\) and \(C\) is respectively as \({W_A},{W_B}\) and \({W_C}\), then
supporting img

1 \({W_A} < {W_B} < {W_C}\)
2 \({W_A} = {W_B} = {W_C} = 0\)
3 \({W_A} = {W_B} \ne {W_C}\)
4 \({W_A} > {W_B} > {W_C}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359469 A charged particle \(q\) is shot with speed \(v\) towards another fixed charged particle \(Q\). It approaches \(Q\) upto a closest distance \(r\) and then returns. If \(q\) were given a speed \(2 v\), the closest distance of approach would be
supporting img

1 \(r\)
2 \(2 r\)
3 \(r / 2\)
4 \(r / 4\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359465 Two small charged blocks of charges \(5\mu C\;and\;3\mu C\) are kept on a rough surface \((\mu = 0.5)\) at a separation of 0.1 \(m\). Find the separation between the two blocks when they come to rest.
supporting img

1 \(0.27\,m\)
2 \(0.17\,m\)
3 \(1.2\,m\)
4 \(0.45\,m\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359466 A hot filament liberates an electron with zero initial velocity. The anode potential is 1200 \(V\). The speed of the electron when it strikes the anode is

1 \(2.1 \times {10^7}m\,{s^{ - 1}}\)
2 \(2.5 \times {10^8}m\,{s^{ - 1}}\)
3 \(1.5 \times {10^5}m\,{s^{ - 1}}\)
4 \(2.5 \times {10^6}m\,{s^{ - 1}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359467 Four equal charges \(q\) each are placed at four corners of a square of side \(a\) each. Work done in carrying a charge \(-q\) from its centre to infinity is

1 zero
2 \(\dfrac{\sqrt{2} q}{\pi \varepsilon_{0} a}\)
3 \(\dfrac{q^{2}}{2 \pi \varepsilon_{0} a}\)
4 \(\dfrac{\sqrt{2} q^{2}}{\pi \varepsilon_{0} a}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359468 In the following diagram the work done in moving an isolated point charge from point \(P\) to point \(A\), \(B\) and \(C\) is respectively as \({W_A},{W_B}\) and \({W_C}\), then
supporting img

1 \({W_A} < {W_B} < {W_C}\)
2 \({W_A} = {W_B} = {W_C} = 0\)
3 \({W_A} = {W_B} \ne {W_C}\)
4 \({W_A} > {W_B} > {W_C}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359469 A charged particle \(q\) is shot with speed \(v\) towards another fixed charged particle \(Q\). It approaches \(Q\) upto a closest distance \(r\) and then returns. If \(q\) were given a speed \(2 v\), the closest distance of approach would be
supporting img

1 \(r\)
2 \(2 r\)
3 \(r / 2\)
4 \(r / 4\)