Magnetic Effects of Current and Magnetism Archives

An electric kettle takes 4A current at 220 V. How much time will it take to boil 1 kg of…

7 years ago

The oscillating frequency of a cyclotron is 10 MHz. If the radius of its Dees is o.5 m, the kinetic…

7 years ago

A current I flows along the length of an infinitely long, straight, thin walled pipe. Then Options (a) the magnetic…

7 years ago

An electric kettle has two heating elements. One brings it to boil in ten minutes and the other in fifteen…

7 years ago

A disc of radius 0.1 m is rotating with a frequency 10 rev/sec in a normal magnetic field of strength…

7 years ago

Two bulbs 40 watt and 60 watt and rated voltage 240 V are connected in series across a potential difference…

7 years ago

A galvanometer is converted into an ammeter by connecting Options (a) low resistance in parallel (b) low resistance in series…

7 years ago

A long straight wire carries a certain current and produces a magnetic field of 2 x 10⁻⁴ weber/m² at a…

7 years ago

An electron moving in a uniform magnetic field of induction of intensity B, has its radius directly proportional to Options…

7 years ago

A proton carrying 1 MeV kinetic energy is moving in a circular path of radius R in uniform magnetic field.…

7 years ago