How do you detect radioactivity?Detection of Radioactive Emission:Radioactive emission is invisible to the naked eye. It cannot be detected by any of our senses because it has no smell, no taste and makes no sound.The detection of radioactive emissions …

What is the Meaning of Magnetic ForceForce on a Current Carrying Wire due to  Magnetic Field : Introduction : A current carrying conductor produces a magnetic field around it. When it is placed in a magnetic field, the two magnetic fields interact. A for…

Describe the turning effect on a current carrying coil in a magnetic fieldA current-carrying coil in a magnetic field experiences a turning effect.In Figure, a rectangular coil ABCD carries a current in the magnetic field between two magnadur magnets. (…

Damped Oscillations, Forced Oscillations and ResonanceDamping in an Oscillating System Figure shows some oscillating systems. Each oscillating system will oscillate with a smaller and smaller amplitude and eventually stop completelyThis is due to energy …

How can a transistor be used as a switch?Transistor as an Automatic Switch:In a transistor switching circuit as shown in Figure, a fixed resistor, R1 and a variable resistor, R2 form a potential divider.By varying the value of the variable resistor, the …

What factors affect the strength of an electromagnet?Factors Affecting the Strength of the Magnetic Field of an Electromagnet: Factors that affect the strength of electromagnets are the nature of the core material, strength of the current passing through…

Factors Affecting the Magnitude of the Force on a Current Carrying ConductorThe magnitude of the force on a current-carrying conductor in a magnetic field depends on (a) The current in the conductor, (b) The strength of the magnetic field. (c) The length…

Is an electromagnet a temporary or a permanent magnet? Electromagnets:A permanent magnet is a magnet that retains its magnetion. A small permanent magnet can be used to hold notes onto the door of a refrigerator. Neodymium magnets are very powerful perme…

How do you calculate the total resistance of a series circuit?The Effective Resistance of Resistors Connected in SeriesThere are three important characteristics in a series circuit: (a) The current passing through each resistor is the same. (b) The pote…

What are the Losses in a Transformer?Energy Losses in a Transformer:In a real transformer, some energy is lost in the transformer.The output power is less than the input power. Therefore the efficiency of the transformer is less than 100%.There are four …