Final answer:
It is false that PWM with Bipolar voltage switching results in a higher ripple current; it usually leads to a lower ripple current. True or False questions elucidate phenomena like the creation of current in photoconductive cells, electromagnetic induction in a copper tube with a falling magnet, and the superposition principle of waves.
Step-by-step explanation:
The statement PWM with Bipolar voltage switching results in a higher ripple current compared to unipolar PWM in the output of H-Bridge Converter is false. Bipolar PWM actually tends to result in a lower ripple current because it alternates the current flow through the inductance in both directions, effectively canceling out some of the ripple.
The following are additional True or False questions related to electrical and physical phenomena:
- A current is created in a photoconductive cell, even if only one electron is expelled from a photon strike. - True. A single electron expelled by a photon strike can indeed generate a current, albeit a very small one.
- If you drop a bar magnet through a copper tube, it induces an electric current in the tube. - True. This is an example of electromagnetic induction, and a current is induced in the copper tube as the magnet falls through it.
- The amplitude of one wave is affected by the amplitude of another wave only when they are precisely aligned. - False. The principle of superposition states that the resulting amplitude of two overlapping waves is the sum of their individual amplitudes, regardless of their alignment.