An electric kettle takes 4A current at 220 V. How much time will it take to boil 1 kg
An electric kettle takes 4A current at 220 V. How much time will it take to boil 1 kg of…
6 years ago
Magnetic Effects of Current and Magnetism
The oscillating frequency of a cyclotron is 10 MHz. If the radius of its Dees is o.5 m,
The oscillating frequency of a cyclotron is 10 MHz. If the radius of its Dees is o.5 m, the kinetic…
6 years ago
A current I flows along the length of an infinitely long, straight, thin walled pipe.
A current I flows along the length of an infinitely long, straight, thin walled pipe. Then Options (a) the magnetic…
6 years ago
An electric kettle has two heating elements. One brings it to boil in ten minutes
An electric kettle has two heating elements. One brings it to boil in ten minutes and the other in fifteen…
6 years ago
A disc of radius 0.1 m is rotating with a frequency 10 rev/sec in a normal magnetic
A disc of radius 0.1 m is rotating with a frequency 10 rev/sec in a normal magnetic field of strength…
6 years ago
Two bulbs 40 watt and 60 watt and rated voltage 240 V are connected in series
Two bulbs 40 watt and 60 watt and rated voltage 240 V are connected in series across a potential difference…
6 years ago
A galvanometer is converted into an ammeter by connecting
A galvanometer is converted into an ammeter by connecting Options (a) low resistance in parallel (b) low resistance in series…
6 years ago
A long straight wire carries a certain current and produces a magnetic field
A long straight wire carries a certain current and produces a magnetic field of 2 x 10⁻⁴ weber/m² at a…
6 years ago
An electron moving in a uniform magnetic field of induction of intensity B,
An electron moving in a uniform magnetic field of induction of intensity B, has its radius directly proportional to Options…
6 years ago
A proton carrying 1 MeV kinetic energy is moving in a circular path of radius
A proton carrying 1 MeV kinetic energy is moving in a circular path of radius R in uniform magnetic field.…
6 years ago