解析 C。不能把手靠近火花感受热量,A 项错误。不能喷水,可能会导致触电,B 项错误。不能像往常一样继续使用,D 项错误。正确的做法是关掉电源并叫电工,C 项正确。涉及的表达有 spark(火花),electrical outlet(电源插座),electrician(电工)。语法上无特殊语法点。反馈 收藏
解析 B。如果房间里的电源插座有问题,自己尝试修理是很危险的,A 项错误。不能忽视问题继续使用,C 项错误。不能用湿布清洁,D 项错误。正确的做法是立刻告诉父母,B 项正确。涉及的表达有 electrical outlet(电源插座)。语法上无特殊语法点。反馈 收藏
If Your Fridge Has Stopped And The Light is Off As obvious as this sounds, often a fridge shuts down completely because it’s simply getting no power. The first thing to check is the breaker(in your home’selectrical service panel) of the circuit serving the fridge. Most homes have a d...
The device itself is equipped with a receiver coil, which converts the magnetic field into electrical energy to charge the device’s battery. When the device is placed on the charging pad, the transmitter coil creates an alternating current (AC) magnetic field, inducing an alternating current in...
But with a household electrical outlet, electricity will flow even if you reverse the left and right prongs of the plug. Since electricity in an AC current flows in both directions, the magnitude of the electricity varies moment by moment. These values are known as instantaneous values, and th...
Working Principles of Different Electrical Vehicles (EV) We will be discussing the principles on which every EV moves, let’s begin with: 1. Working Principles of BEV For the electric motor, power is converted from the DC battery to AC. The accelerator pedal sends a signal to the controller...
Your solar array consists of conductors that convert sunlight into an electrical charge. By necessity, these conductors must run at all times, or you risk running out of power. It’s this capability that makes it more challenging to switch the system. ...
power outlet into an internet access point, while powerline ethernet adapters ensure stable, high-speed connections throughout your home. When choosing a powerline adapter, consider factors like speed requirements, your home’s electrical layout, and features like pass-through outlets or integrated ...
● If this appliance is supplied from a cord extension set or an electrical portable outlet device, the cord extension set or electrical portable outlet device must be positioned so that it is not subject to splashing or ingress of moisture. Additionally, the cord extension set or electrical ...
A child in your classroom just stuck scissors into an electrical outlet. What should your immediate action be? A. Grab the child and pull him away from the source. B. Run and turn off the circuit breaker. C. Call for medical assistance. D. Begin mouth...