267873 Two electric charges of \(+10^{-9} \mathrm{C}\) and \(-10^{-9} \mathrm{C}\) are placed at the corners \(A\) and \(B\) of an equilateral triangle \(A B C\) side \(5 \mathrm{~cm}\). Theelectric intensity at \(C\) is

267899 ' \(n\) ' charges \(Q, 4 Q, 9 Q, 16 Q \ldots\).... are placed at distances of \(1,2,3 \ldots\). . metre from a point ' 0 ' on the same straight line. The electric intensity at ' 0 ' is

267896 In the figureshown, the electric field intensity at \(r=1 m, r=6 m, r=9 m\) in \(\mathrm{Vm}^{-1}\) is

267897 Point charges of \(3 \times 10^{-9} \mathrm{C}\) are situated at each of three corners of a square whose side is \(15 \mathrm{~cm}\). The magnitude and direction of electric field at the vacant corner of the square is

267898 A large flat metal surface has uniform charge density \(+\sigma\). An electron of mass m and charge e leaves the surface at an angle at point \(A\) with speed \(v\), and return to it at point \(B\). The maximum value of \(A B\) is \(\qquad\)

267873 Two electric charges of \(+10^{-9} \mathrm{C}\) and \(-10^{-9} \mathrm{C}\) are placed at the corners \(A\) and \(B\) of an equilateral triangle \(A B C\) side \(5 \mathrm{~cm}\). Theelectric intensity at \(C\) is

267899 ' \(n\) ' charges \(Q, 4 Q, 9 Q, 16 Q \ldots\).... are placed at distances of \(1,2,3 \ldots\). . metre from a point ' 0 ' on the same straight line. The electric intensity at ' 0 ' is

267896 In the figureshown, the electric field intensity at \(r=1 m, r=6 m, r=9 m\) in \(\mathrm{Vm}^{-1}\) is

267897 Point charges of \(3 \times 10^{-9} \mathrm{C}\) are situated at each of three corners of a square whose side is \(15 \mathrm{~cm}\). The magnitude and direction of electric field at the vacant corner of the square is

267898 A large flat metal surface has uniform charge density \(+\sigma\). An electron of mass m and charge e leaves the surface at an angle at point \(A\) with speed \(v\), and return to it at point \(B\). The maximum value of \(A B\) is \(\qquad\)

267873 Two electric charges of \(+10^{-9} \mathrm{C}\) and \(-10^{-9} \mathrm{C}\) are placed at the corners \(A\) and \(B\) of an equilateral triangle \(A B C\) side \(5 \mathrm{~cm}\). Theelectric intensity at \(C\) is

267899 ' \(n\) ' charges \(Q, 4 Q, 9 Q, 16 Q \ldots\).... are placed at distances of \(1,2,3 \ldots\). . metre from a point ' 0 ' on the same straight line. The electric intensity at ' 0 ' is

267896 In the figureshown, the electric field intensity at \(r=1 m, r=6 m, r=9 m\) in \(\mathrm{Vm}^{-1}\) is

267897 Point charges of \(3 \times 10^{-9} \mathrm{C}\) are situated at each of three corners of a square whose side is \(15 \mathrm{~cm}\). The magnitude and direction of electric field at the vacant corner of the square is

267898 A large flat metal surface has uniform charge density \(+\sigma\). An electron of mass m and charge e leaves the surface at an angle at point \(A\) with speed \(v\), and return to it at point \(B\). The maximum value of \(A B\) is \(\qquad\)

267873 Two electric charges of \(+10^{-9} \mathrm{C}\) and \(-10^{-9} \mathrm{C}\) are placed at the corners \(A\) and \(B\) of an equilateral triangle \(A B C\) side \(5 \mathrm{~cm}\). Theelectric intensity at \(C\) is

267899 ' \(n\) ' charges \(Q, 4 Q, 9 Q, 16 Q \ldots\).... are placed at distances of \(1,2,3 \ldots\). . metre from a point ' 0 ' on the same straight line. The electric intensity at ' 0 ' is

267896 In the figureshown, the electric field intensity at \(r=1 m, r=6 m, r=9 m\) in \(\mathrm{Vm}^{-1}\) is

267897 Point charges of \(3 \times 10^{-9} \mathrm{C}\) are situated at each of three corners of a square whose side is \(15 \mathrm{~cm}\). The magnitude and direction of electric field at the vacant corner of the square is

267898 A large flat metal surface has uniform charge density \(+\sigma\). An electron of mass m and charge e leaves the surface at an angle at point \(A\) with speed \(v\), and return to it at point \(B\). The maximum value of \(A B\) is \(\qquad\)

267873 Two electric charges of \(+10^{-9} \mathrm{C}\) and \(-10^{-9} \mathrm{C}\) are placed at the corners \(A\) and \(B\) of an equilateral triangle \(A B C\) side \(5 \mathrm{~cm}\). Theelectric intensity at \(C\) is

267899 ' \(n\) ' charges \(Q, 4 Q, 9 Q, 16 Q \ldots\).... are placed at distances of \(1,2,3 \ldots\). . metre from a point ' 0 ' on the same straight line. The electric intensity at ' 0 ' is

267896 In the figureshown, the electric field intensity at \(r=1 m, r=6 m, r=9 m\) in \(\mathrm{Vm}^{-1}\) is

267897 Point charges of \(3 \times 10^{-9} \mathrm{C}\) are situated at each of three corners of a square whose side is \(15 \mathrm{~cm}\). The magnitude and direction of electric field at the vacant corner of the square is

267898 A large flat metal surface has uniform charge density \(+\sigma\). An electron of mass m and charge e leaves the surface at an angle at point \(A\) with speed \(v\), and return to it at point \(B\). The maximum value of \(A B\) is \(\qquad\)