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What must pass through a coil in order to make an electromagnet?
An electrical current will cause an electromagnet to energise.
Why do electrical appliances need to be plugged into the wall?
Because the power needed to make them work is delivered by a national 'grid' of electrical cables. There is no way to actually transmit power to an appliance through the air. It must be deilvered by cables.
A material used for electrical wiring must have what?
free electrons
A material used for electrical wiring must have?
free electrons
The total load 75 amps is continuous what size breaker is required?
This depends on your local electrical code, however the National Electrical Code and Canadian Electrical Code both state that you must derate circuits to 80% of their maximum electrical capacity, so for a load of 75 amps you must use overcurrent protection and wire rated for 93.5 amps, and since that doesn't exist you must upsize to 100 amps.
Which precautions must be taken when electrical fittings are put in the bathrooms?
got to make sure its turned off
When is it required to bond a junction box?
If a junction box is part of an electrical conduit system then it is required to be bonded so as to make the whole electrical conduit system continuously conductive.
Is underfloor heating difficult to install yourself?
Installing Underfloor Heating cable is easy if you are a competent DIY enthusiast. However, as there are electrical connections you must make sure a competent electrician is available to connect them for you. If in any doubt you could ask a flooring specialist for advice.
applied for electrical certification renewall 14 days before expiration date will i be denied?
No. Renewal must be applied for before the expiration date. A form found on the website must be turned in before this time.
Why must cells phones be turned off in a medical office?
So that it doesn't disturb anyone, it is unlikely that it will cause any damage to any electrical and medical equipment.
Why must two electrodes be used to make an electrical measurement such as pH?
One is a Cathode and the other is the anode
What must pass through a coil in order to make an electromagnet?
An electrical current will cause an electromagnet to energise.
In an automobile a 12 Volt battery simultaneously supplies electrical energy for the ignition lights and radio. This electrical circuit must be?
The battery must be able to provide enough power, to make all this work. Also, it must be able to store a reasonable amount of energy, in order to last for a reasonable time.
What is the problem in connecting the railroad tracks?
No sure what you mean here... When connecting rails by joint, they must ensure that all the nuts and screws are completely tightened. They must ensure the track is in gauge in how far they are spaced. The also must make sure that the track is level. Additionally, railroad signals work by a light electrical current that runs in the rail, so they must also make sure to make clean wire connections from rail to rail. By welded rail, they need to make sure all of the above is correct except the screws and wire for signalling. They must also ensure not to overdo the welding and that it does not warp the rail. As with all welding, they must ensure, especially true for the weight of trains, that the weld is very throughout and strong. Hope that helps.
Why must you make a magnet by using batteries?
because battery supplies a direct current and to make a magnet with using the electrical method you need to supply direct current to the material {metal}which must be wounded with a coil {solenoid}.
Must bare ground wire splices or connections be in a box?
I thought so. A buyers home inspecter says the splices,connections must be in a box "as per code".
Which is better to study electrical or electronics?
You must start with electrical. Furthermore you can move to electronics. Electrical is the basis, electronics is the complement.
