Hereâs the worst thing about TRT: using a testosterone patch, pill, gel, or injection for even just a couple of weeks can shut down the natural testosterone-producing actions of your pituitary gland, hypothalamus, and gonads. Your body stops making testosterone, and your testicles decrease in size.
Magnetometers are devices that measure magnetic fields. A magnetometer is an instrument with a sensor that measures magnetic flux density B (in units of Tesla or As/ m2). Magnetometers refer to sensors used for sensing magnetic fields OR to systems which measure magnetic field using one or more sensors.Since magnetic flux density in air is directly proportional to magnetic field strength, a magnetometer is capable of detecting fluctuations in the Earth's field. Scalar magnetometers that measure only the magnitude of the vector passing through the sensor regardless of the direction. Quantum magnetometers are an example of this type of magnetometer. Various magnetometers used to measure magnetic fields are discussed in following sections.
In this demonstration you will use an instrument called a galvanometer. It is an instrument with a bar of iron wrapped with an electrical wire, and a magnet. It detects electrical current. If a wire is connected to this instrument, it can detect if electricity is flowing through the wire. If there is no current through the wire, the needle will move to the left. Similarly, if there is a current flowing through the wire, the needle will move towards the right of the scale. This demonstration should help to give you an idea of the relationship between magnetism and electricity.