how much output I can get if a coil having 100000 turns moves pass a strong 3000 gauss neodymium magnet only once a time?

To calculate the output generated by a coil moving past a magnet, you need to consider several factors, including the number of turns in the coil, the strength of the magnet, and the speed at which the coil is moving. Let's break down the process step by step:

1. Determine the magnetic flux density: The strength of the magnet is typically measured in terms of magnetic flux density. In this case, you mentioned the magnet's strength as 3000 gauss. Gauss is a unit of magnetic flux density.

2. Calculate the magnetic flux: The magnetic flux can be calculated by multiplying the magnetic flux density (in gauss) by the area of the coil that is exposed to the magnetic field. Since the coil is moving past the magnet only once, this calculation simplifies to:

Magnetic Flux = Magnetic Flux Density (in gauss) * Area of the coil (in square meters)

3. Determine the induced voltage: The induced voltage in the coil can be found by multiplying the magnetic flux by the rate of change of the number of turns per unit time. Since the coil is moving past the magnet only once, the rate of change of the number of turns per unit time is simply the total number of turns in the coil. Thus, the induced voltage is:

Induced Voltage = Magnetic Flux * Number of Turns in the coil

Now, let's plug in the given values:

Number of Turns in the coil = 100,000
Magnetic Flux Density = 3000 gauss
Area of the coil (which depends on the specific coil dimensions) is required to calculate the magnetic flux.

By multiplying the magnetic flux (obtained using step 2) with the number of turns in the coil, you can find the induced voltage.

Keep in mind that this calculation assumes a simplified scenario and neglects several factors such as the coil's resistance, the angle of the magnetic field with respect to the coil, and the speed of the coil's movement, which could affect the final output.