Cengage JEE Mains Physics by B.M Sharma
Three positive charges of equal magnitude q are placed at the vertices of and equilateral triangle of side l. How can the system of charges be placed in equilibrium?
06
Dec
Three positive charges of equal magnitude q are placed at the vertices of and equilateral triangle of side l. How can the system of charges be placed in equilibrium? Three positive charges of equal magnitude q are placed at the vertices of and equilateral triangle of side l. How can the system of charges be [...]
A ring of charge with radius 0.5m has 0.002 m gap. If the ring carries a charge of +1C the electric field at the center is
06
Dec
A ring of charge with radius 0.5m has 0.002 m gap. If the ring carries a charge of +1C the electric field at the center is A ring of charge with radius 0.5m has 0.002 m gap. If the ring carries a charge of +1C the electric field at the center is December 6, 2020 [...]
Five point charges, +q each are placed at the five vertices of a regular hexagon. The distance of the center of the hexagon from any of the vertices is a. the electric field at the center of the hexagon is
06
Dec
Five point charges, +q each are placed at the five vertices of a regular hexagon. The distance of the center of the hexagon from any of the vertices is a. the electric field at the center of the hexagon is +q each are placed at the five vertices of a regular hexagon. The distance of [...]
An oil drop, carrying six electronic charges and having a mass of 1.6×10^−12g, falls with some terminal velocity in a medium. What magnitude of vertical electric field is required to make the drop move upward with the same speed as it was formerly moving down ward with ? Ignore buoyancy.
06
Dec
An oil drop, carrying six electronic charges and having a mass of 1.6×10^−12g, falls with some terminal velocity in a medium. What magnitude of vertical electric field is required to make the drop move upward with the same speed as it was formerly moving down ward with ? Ignore buoyancy. An isolated charge q1 of [...]
Two charge Q1=18μC and Q2=−2μC are separated by a distance R, and Q1 is on the left off Q2. The distance of the point where the net electric field is zero is
06
Dec
Two charge Q1=18μC and Q2=−2μC are separated by a distance R, and Q1 is on the left off Q2. The distance of the point where the net electric field is zero is and Q1 is on the left off Q2. The distance of the point where the net electric field is zero is Two charge [...]
A point charge of 100μC is placed at 3jˆ+4jˆm. Find the electric field intensity due to this charges at a point located at 9jˆ+12jˆm.
06
Dec
A point charge of 100μC is placed at 3jˆ+4jˆm. Find the electric field intensity due to this charges at a point located at 9jˆ+12jˆm. A point charge of 100μC is placed at 3jˆ+4jˆm. Find the electric field intensity due to this charges at a point located at 9jˆ+12jˆm. December 6, 2020 Category: Cengage JEE Mains [...]
Three equal charges, each +q are placed on the corners of an equilateral triangle . The electric field intensity at the centroid of the triangle is
06
Dec
Three equal charges, each +q are placed on the corners of an equilateral triangle . The electric field intensity at the centroid of the triangle is each +q are placed on the corners of an equilateral triangle . The electric field intensity at the centroid of the triangle is Three equal charges December 6, 2020 [...]
Two particle of masses in the ration 1:2 with charges in the ratio 1:1, are placed at rest in a uniform electric field. They are released and allowed to move for the same time. The ratio of their kinetic energies will be finally
06
Dec
Two particle of masses in the ration 1:2 with charges in the ratio 1:1, are placed at rest in a uniform electric field. They are released and allowed to move for the same time. The ratio of their kinetic energies will be finally are placed at rest in a uniform electric field. They are released [...]
A positively charged ball hangs from a long silk thread. Electric filed at a certain point (at the same horizontal level of ball) due to this charge is E. Let us put a positive test charge q0 at this point and measure F/q0 on this charges. then E
06
Dec
A positively charged ball hangs from a long silk thread. Electric filed at a certain point (at the same horizontal level of ball) due to this charge is E. Let us put a positive test charge q0 at this point and measure F/q0 on this charges. then E ΔV measured between B and C is [...]
An isolated charge q1 of mass m is suspended freely by a thread of length l. Another charge q2 is brought near it (r>>l). When q1 is in equilibrium tension in thread will be
06
Dec
An isolated charge q1 of mass m is suspended freely by a thread of length l. Another charge q2 is brought near it (r>>l). When q1 is in equilibrium tension in thread will be An isolated charge q1 of mass m is suspended freely by a thread of length l. Another charge q2 is brought [...]