267918 There point charges\(+q,-q\) and \(+q\) are placed at the vertices \(P, Q\) and \(R\) of an equilateral triangle as shown. If \(F=\frac{1}{4 \pi \varepsilon_{0}} \frac{q^{2}}{r^{2}}\), where ' \(r\) ' is the side of the triangle, the force on charge at ' \(P\) ' due to charges at \(Q\) and \(R\) is

1 F alongpositivex-direction

2 F along negative\(x\)-direction

3 \(\sqrt{2} F\) along positive \(x\)-direction

4 \(\sqrt{2} F\) along negative \(x\)-direction

267919 Three point charges\(+q,+q\) and \(-q\) are placed at the corners of an equilateral triangle of side ' \(a\) ' . Another charge \(+Q\) is kept at the centroid. Force exerted on \(Q\) is:

267920 Three charges\(-q_{1},+q_{2}\) and \(-q_{3}\) are placed as shown in fig. The \(\mathrm{X}\)-component of the force on \(-\mathrm{q}_{1}\) is proportional to

272130 Three charges $+q,+2q$ and $+4q$ are connected by strings as shown in the figure. What is ratio of tensions in the strings $AB$ and $BC$ ?

272131 The figure shows a charge $+q$ at point $P$ held in equilibrium in air with the help of four $+q$ charges situated at the vertices of a square: The net electrostatic force on $q$ is given by

267918 There point charges\(+q,-q\) and \(+q\) are placed at the vertices \(P, Q\) and \(R\) of an equilateral triangle as shown. If \(F=\frac{1}{4 \pi \varepsilon_{0}} \frac{q^{2}}{r^{2}}\), where ' \(r\) ' is the side of the triangle, the force on charge at ' \(P\) ' due to charges at \(Q\) and \(R\) is

1 F alongpositivex-direction

2 F along negative\(x\)-direction

3 \(\sqrt{2} F\) along positive \(x\)-direction

4 \(\sqrt{2} F\) along negative \(x\)-direction

267919 Three point charges\(+q,+q\) and \(-q\) are placed at the corners of an equilateral triangle of side ' \(a\) ' . Another charge \(+Q\) is kept at the centroid. Force exerted on \(Q\) is:

267920 Three charges\(-q_{1},+q_{2}\) and \(-q_{3}\) are placed as shown in fig. The \(\mathrm{X}\)-component of the force on \(-\mathrm{q}_{1}\) is proportional to

272130 Three charges $+q,+2q$ and $+4q$ are connected by strings as shown in the figure. What is ratio of tensions in the strings $AB$ and $BC$ ?

272131 The figure shows a charge $+q$ at point $P$ held in equilibrium in air with the help of four $+q$ charges situated at the vertices of a square: The net electrostatic force on $q$ is given by

267918 There point charges\(+q,-q\) and \(+q\) are placed at the vertices \(P, Q\) and \(R\) of an equilateral triangle as shown. If \(F=\frac{1}{4 \pi \varepsilon_{0}} \frac{q^{2}}{r^{2}}\), where ' \(r\) ' is the side of the triangle, the force on charge at ' \(P\) ' due to charges at \(Q\) and \(R\) is

1 F alongpositivex-direction

2 F along negative\(x\)-direction

3 \(\sqrt{2} F\) along positive \(x\)-direction

4 \(\sqrt{2} F\) along negative \(x\)-direction

267919 Three point charges\(+q,+q\) and \(-q\) are placed at the corners of an equilateral triangle of side ' \(a\) ' . Another charge \(+Q\) is kept at the centroid. Force exerted on \(Q\) is:

267920 Three charges\(-q_{1},+q_{2}\) and \(-q_{3}\) are placed as shown in fig. The \(\mathrm{X}\)-component of the force on \(-\mathrm{q}_{1}\) is proportional to

272130 Three charges $+q,+2q$ and $+4q$ are connected by strings as shown in the figure. What is ratio of tensions in the strings $AB$ and $BC$ ?

272131 The figure shows a charge $+q$ at point $P$ held in equilibrium in air with the help of four $+q$ charges situated at the vertices of a square: The net electrostatic force on $q$ is given by

267918 There point charges\(+q,-q\) and \(+q\) are placed at the vertices \(P, Q\) and \(R\) of an equilateral triangle as shown. If \(F=\frac{1}{4 \pi \varepsilon_{0}} \frac{q^{2}}{r^{2}}\), where ' \(r\) ' is the side of the triangle, the force on charge at ' \(P\) ' due to charges at \(Q\) and \(R\) is

1 F alongpositivex-direction

2 F along negative\(x\)-direction

3 \(\sqrt{2} F\) along positive \(x\)-direction

4 \(\sqrt{2} F\) along negative \(x\)-direction

267919 Three point charges\(+q,+q\) and \(-q\) are placed at the corners of an equilateral triangle of side ' \(a\) ' . Another charge \(+Q\) is kept at the centroid. Force exerted on \(Q\) is:

267920 Three charges\(-q_{1},+q_{2}\) and \(-q_{3}\) are placed as shown in fig. The \(\mathrm{X}\)-component of the force on \(-\mathrm{q}_{1}\) is proportional to

272130 Three charges $+q,+2q$ and $+4q$ are connected by strings as shown in the figure. What is ratio of tensions in the strings $AB$ and $BC$ ?

272131 The figure shows a charge $+q$ at point $P$ held in equilibrium in air with the help of four $+q$ charges situated at the vertices of a square: The net electrostatic force on $q$ is given by

267918 There point charges\(+q,-q\) and \(+q\) are placed at the vertices \(P, Q\) and \(R\) of an equilateral triangle as shown. If \(F=\frac{1}{4 \pi \varepsilon_{0}} \frac{q^{2}}{r^{2}}\), where ' \(r\) ' is the side of the triangle, the force on charge at ' \(P\) ' due to charges at \(Q\) and \(R\) is

1 F alongpositivex-direction

2 F along negative\(x\)-direction

3 \(\sqrt{2} F\) along positive \(x\)-direction

4 \(\sqrt{2} F\) along negative \(x\)-direction

267919 Three point charges\(+q,+q\) and \(-q\) are placed at the corners of an equilateral triangle of side ' \(a\) ' . Another charge \(+Q\) is kept at the centroid. Force exerted on \(Q\) is:

267920 Three charges\(-q_{1},+q_{2}\) and \(-q_{3}\) are placed as shown in fig. The \(\mathrm{X}\)-component of the force on \(-\mathrm{q}_{1}\) is proportional to

272130 Three charges $+q,+2q$ and $+4q$ are connected by strings as shown in the figure. What is ratio of tensions in the strings $AB$ and $BC$ ?

272131 The figure shows a charge $+q$ at point $P$ held in equilibrium in air with the help of four $+q$ charges situated at the vertices of a square: The net electrostatic force on $q$ is given by