What devices can be affected by a failure of the electrical system in a helicopter?

Question

Question PPL(H) - Private Pilot License - Aircraft General Knowledge

QuizVDS · Accepted Answer

Radio equipment, navigation equipment and gyros

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Airspeed indicator, altimeter and artificial horizon

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Radio equipment, navigation equipment and magnetic compass

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Fuel quantity indication, radio equipment and altimeter

Id 125 - PPL(H) EN - What devices can be affected by a failure of the electrical system in a helicopter?