Question

At which angles does the EMF reach its maximum magnitude?

Options

• \[\theta=45^\circ\text{ or }135^\circ\]

• \[\theta=0^\circ\text{ or }180^\circ\]

• \[\theta=90^\circ\text{ or }270^\circ\]

• \[\theta=0^\circ\text{ or }360^\circ\]

Answer 1

The EMF reaches maximum magnitude when \[\sin(\omega t)=\pm1\]. These values occur at \[\theta=90^\circ\] and \[\theta=270^\circ\].