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Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 17 - Electric Charge and Field > A block of mass m containing a net negative charge -q is placed on a frictionless horizontal table and is connected to a wall through an unstretched spring of spring constant k as shown. If horizontal electric field E parallel to the spring is switched on, then the maximum compression of the spring is

A block of mass m containing a net negative charge -q is placed on a frictionless horizontal table and is connected to a wall through an unstretched spring of spring constant k as shown. If horizontal electric field E parallel to the spring is switched on, then the maximum compression of the spring is

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.