Tag: SS3 ONLINE STUDY

REFRACTION THROUGH TRIANGULAR AND RECTANGULAR PRISM Triangular prism Rectangular prism Angle of deviation Real and apparent depth Triangular prism When […]

The average power dissipated in an A.C. circuit per cycle is given as: P=12I0V0 But, I0=2(Irms)−−−−−−√ and V0=2(Vrms)−−−−−−√∴P=12(2(Irms)−−−−−−√×2(Vrms)−−−−−−√)∴P=2IrmsVrms2∴P=IrmsVrms According to Ohm’s law, […]

When an a.c is applied through a capacitor, current leads by 90° or π2radians. They are out of phase. The ability […]

An a.c. circuit is one in which the magnitude of the current changes periodically with time. The a.c. is produced […]

Definition of a Capacitor A capacitor can be defined as a device which can store electrical energy. It consist essentially  […]

This device converts mechanical energy into electrical energy. It is a reverse of the electric  motor. It contains a coil […]

This is a device which can convert electric energy into rotational mechanical energy. It consists of coils of wire pivoted […]

The electromagnetic field is a combination of the electric field and the magnetic field. The electric  field component is produced […]

The magnetic field exerts a force on a charge moving in the field because charges in motion constitute an electric […]

When a magnetic needle or a bar magnet is freely suspended, it comes to rest roughly in the N-S poles […]