Basic Electrical Concepts for Multirotors (CH2)

Resistance is measured in:

• Volts

• Watts

• Ohms

• Amps

Voltage multiplied by current equals:

• Volts

• Ohms

• Amps

• Watts

If a given motor draws 20A at full throttle, what is the minimum amperage required for the ESC?

• 15A ESC

• 10A ESC

• 20A ESC

• 25A ESC

To control a multirotor during flight, the flight controller may analyse data sent to it from the:

• VHF Radio

• Flaps

• Accelerometer

• Propellers

A circuit breaker or fuse's main purpose is:

• To push the boundaries of the multirotor flight performance

• To protect the circuit from overcurrent

• To increase the voltage in the circuit

• To control the speed of the motor

A 2000kV motor connected to a 3S (11.1V) battery would theoretically spin at what RPM?

During a climb in a multirotor, the electrical current to the motor will:

• Increase

• Decrease

• Stay the same

• Increase then decrease

What is one of the advantages of LiPo batteries?

• They have an equal physical size for power output

• They are incredibly stable

• They have a high energy to weight ratio

• They are heavy

What is the voltage of a fully charged LiPo cell?

• 3.0V

• 7.4V

• 4.2V

In theory, a 6000mAh battery should be able to provide 20 amps continuously for how long?