An ac generator spins a magnet inside a loop of wire to generate an induced current. which of the following changes would cause the amount of induced current to increase? group of answer choices a) none of these would increase the induced current. b) spinning the magnet faster. c) using a stronger magnet and spinning the magnet faster would both increase the induced current. d) using a stronger magnet.

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?