\n \n \n \nThe field due to is towards right and the field due to is towards left. Also and . \n \n \n"},"encodingFormat":"text/html","position":0,"text":""},"comment":{"@type":"Comment","text":"Use formula of electric field due to point charge."},"eduQuestionType":"Multiple choice","encodingFormat":"text/markdown","learningResourceType":"Practice problem","suggestedAnswer":[{"@type":"Answer","comment":{"@type":"Comment","text":"It is a wrong option."},"encodingFormat":"text/html","position":1,"text":""},{"@type":"Answer","comment":{"@type":"Comment","text":"It is a wrong option."},"encodingFormat":"text/html","position":2,"text":""},{"@type":"Answer","comment":{"@type":"Comment","text":"It is a wrong option."},"encodingFormat":"text/html","position":3,"text":""}],"text":"Four point charges and are placed on y-axis at and respectively. The magnitude of the electric field at a point on the x-axis at with will behave as:"},"name":"Quiz on Electrostatics","typicalAgeRange":"10-17","url":"https://www.embibe.com/questions/Four-point-charges--q%2C%C2%A0%2Bq%2C%C2%A0%2Bq-and--q-are-placed-on-y-axis-at-y%3D-2d%2C%C2%A0y%3D-d%2C-and-y%3D%2B2d%2C-respectively.-The-magnitude-of-the-electric-field-E-at-a-point-on-the-x-axis-at-x%3DD%2C-with-D%E2%89%ABd%2C-will-behave-as%3A/EM0458401"}
A total charge is divide as and which are kept at two of the vertices of an equilateral triangle of side . The magnitude of the electric field E at the third vertex of the triangle is to be depicted schematically as a function of . Choose the correct figure.
The bob of a simple pendulum has mass and a charge of It is at rest in a uniform horizontal electric field of intensity At equilibrium, the angle that the pendulum makes with the vertical is:
Three charged particles and with charges and are present on the circumference of a circle of radius The charged particles and centre of the circle formed an equilateral triangle as shown in the figure. The electric field at the point is
A particle, of mass and charge , is initially at rest. At time , the particle comes under the influence of an electric field , where and . Consider the effect of only the electrical force on the particle. Then the maximum speed, in , attained by the particle at subsequent times is ____________.
A particle of mass and charge is released from rest in a uniform electric field. If there is no other force on the particle, the dependence of its speed on the distance travelled by it is correctly given by (graphs are schematic and not drawn to scale)
An electric field due to a positively charged long straight wire at a distance from it is proportional to in magnitude. Two electrons are orbiting such a long straight wire in circular orbits of radii and . The ratio of their respective time periods is
Charges and are at points and of a right-angled triangle . The resultant electric field at point is perpendicular to the hypotenuse, then is proportional to:
A thin disc of radius has a concentric hole of radius in it (see figure). It carries uniform surface charge on it. If the electric field on its axis at a height from its centre is given as then the value of is
The electric field in a certain region is acting radially outward and is given by . A charge contained in a sphere of radius centred at the origin of the field will be given by
A particle of mass and charge is placed at rest in uniform electric field and then released. The kinetic energy attained by the particle after moving a distance is
The attractive force results when a glass rod rubbed with a silk and a plastic rod rubbed with a fur brings together. During friction which type of charges are developed on glass rod and plastic rod?
Two charged thin infinite plane sheets of uniform charge density and , where , intersect at the right angle. Which of the following best represents the electric field lines for the system:
A simple pendulum of length is placed between the plates of a parallel plate capacitor having electric field , as shown in figure. Its bob has mass and charge . The time period of the pendulum is given by:
A charged particle (mass and charge ) moves along axis with velocity . When it passes through the origin it enters a region having uniform electric field which extends upto . Equation of path of electron in the region is:
A spherical conductor of radius has a charge of distributed uniformly. What is the magnitude of electric field at a point from the centre of the sphere?
As shown in the figure, two particles, each of mass tied at the ends of a light string of length are kept on a frictionless horizontal surface. When the mid point of the string is pulled vertically upwards with a small but constant force the particles move towards each other on the surface. Magnitude of acceleration of each particle, when the separation between them becomes is