Brainliest for the first person to answer Which is a characteristic of an electromagnetic wave?

The fields are at right angles to each other and to the direction of the wave.

The waves are produced when an electric charge is at rest.

The fields are aligned with each other and to the direction of travel.

The fields are independent of each other.

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?