An industrial electrical system on a cargo vessel is rated to deliver alternating current at 440 V440\text{ V}440 V.
Which of the following is correct?
The peak voltage is 440 V440\text{ V}440 V.
The root mean square voltage is 622 V622\text{ V}622 V.
The peak-to-peak voltage is 1245 V1245\text{ V}1245 V.
The mean voltage is 311 V311\text{ V}311 V.
66 exam-style questions on AQA A Level Physics Magnetic fields (A-level only), covering Magnetic flux density (A-level only), Moving charges in a magnetic field (A-level only), Magnetic flux and flux linkage (A-level only), Electromagnetic induction (A-level only), Alternating currents (A-level only), and The operation of a transformer (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.