Podcast
Questions and Answers
What is the primary function of a step-down transformer?
What is the primary function of a step-down transformer?
- Converts high voltages into low voltages (correct)
- Converts low voltages into high voltages
- Alters the voltage of an alternating current
- Makes lights dimmer and brighter
How is the primary coil different from the secondary coil in a step-up transformer?
How is the primary coil different from the secondary coil in a step-up transformer?
- Primary coil has more turns and is made of thick wire (correct)
- Primary coil has more turns and is made of thin wire
- Primary coil has fewer turns and is made of thin wire
- Primary coil has fewer turns and is made of thick wire
What is the primary purpose of a choke coil in a circuit?
What is the primary purpose of a choke coil in a circuit?
- To prevent the flow of low-frequency currents
- To produce self-induced EMF (correct)
- To remove ripples from the output of rectifier circuits
- To speed up electric motors
Which component restricts the flow of current and is typically used with a capacitor in a timing circuit?
Which component restricts the flow of current and is typically used with a capacitor in a timing circuit?
What type of circuit does a printed circuit board (PCB) usually have components inserted into?
What type of circuit does a printed circuit board (PCB) usually have components inserted into?
What does a light-emitting diode (LED) do as a transducer?
What does a light-emitting diode (LED) do as a transducer?
Which component is used to connect the power supply to an electronic gadget?
Which component is used to connect the power supply to an electronic gadget?
What is the main function of an autotransformer?
What is the main function of an autotransformer?
What is the primary function of a choke coil?
What is the primary function of a choke coil?
What is a key advantage of dome cameras?
What is a key advantage of dome cameras?
Which type of camera is well-suited for long distance viewing outdoors?
Which type of camera is well-suited for long distance viewing outdoors?
What is a key feature of C-mount cameras?
What is a key feature of C-mount cameras?
How do day/night cameras function in low light?
How do day/night cameras function in low light?
What does the PTZ in 'PTZ camera' stand for?
What does the PTZ in 'PTZ camera' stand for?
What is an advantage of IP/network cameras?
What is an advantage of IP/network cameras?
Why are high definition (HD) cameras often used in high-risk establishments?
Why are high definition (HD) cameras often used in high-risk establishments?
What is the key capability of varifocal cameras?
What is the key capability of varifocal cameras?
How do wireless security cameras transmit footage?
How do wireless security cameras transmit footage?
What is the purpose of a transformer?
What is the purpose of a transformer?
