A transformer has 90 turns in the primary coil and 9 turns in the secondary coil. If the output voltage is 6 V, what is the input voltage?

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?