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because of the inductance associated with the circuit, it takes time to establish magnetic fields around all the wires and whatnot. This requires extra current at startup.

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Why making capacity is more than breaking capacity in circuit breakers and contactors?

Making capacity is the max fault current it can carry during closing of breaker, e.g. You are closing a breaker on fault. The making capacity is always higher because it is expressed in peak value not rms, and also because of the DC offset, voltage and PF while closing


How does a low voltage thermostat prevent arcing when breaking or making contacts?

A low voltage thermostat prevents arcing during the breaking or making of contacts by using a low current and voltage to control the circuit. This reduced energy minimizes the potential for electrical discharge when contacts open or close, as lower energy levels result in less intense arcing. Additionally, many low voltage thermostats are designed with specific materials and contact configurations that further mitigate arcing, ensuring a safer and more reliable operation. Overall, these design features help prolong the lifespan of the contacts and enhance system efficiency.


How does led brightness vary with current?

More current = More brightness


What will increase the voltage in a circuit?

There is a way to use capacitors to increase the voltage in an ac circuit. It increases it by about 50 %. It was used to increase the voltage going to motors. It is seldom used now that it is much easier to run a higher voltage line into a place of business. It does not work for Direct Current.


What is the current running through resistor four if its 18 ohms?

There is insufficient information in the question to properly answer it. You need to provide more information, such as the voltage across resistor four, or more details about the rest of the ciricuit. Please restate the question.

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Why making capacity is more than breaking capacity in circuit breakers and contactors?

Making capacity is the max fault current it can carry during closing of breaker, e.g. You are closing a breaker on fault. The making capacity is always higher because it is expressed in peak value not rms, and also because of the DC offset, voltage and PF while closing


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