mkbh_10 said:In my physics lab , we do our expt. : analysis of HYSTERESIS curve which requires a current of 1-2 A to magnetise the solenoid , now we have a ready made instrument for getting that value of current .
mkbh_10 said:So what could i do manually in order to get that magnitude of current from AC mains which has a feeble current of around 30 mA.
berkeman said:1-2A at what voltage? AC or DC?
What do you mean by 30mA? You only have 30mA at 120Vrms available (why?), or you only need 30mA at some AC or DC voltage (what voltage?) for some variation on the experiment?
In order to safely increase the AC mains current, you will need to use a variac transformer. This device allows you to gradually increase the voltage and current, ensuring that the circuit is not overloaded or damaged.
The purpose of increasing the AC mains current is to conduct experiments that require higher current levels. This can help to generate stronger magnetic fields, produce more heat, or power larger devices.
Yes, it is important to follow proper safety measures when working with high currents. Make sure to wear protective gear, such as gloves and goggles, and to work in a well-ventilated area. It is also important to use proper equipment and to never exceed the recommended current levels.
No, it is not recommended to use a regular power outlet for increasing the AC mains current. These outlets are typically limited to 15-20 amps, which is not enough for the desired 1-2 A current. Using a variac transformer is a safer and more efficient option.
Yes, working with high currents can be dangerous if proper precautions are not taken. There is a risk of electric shock, burns, and damage to equipment. It is important to carefully follow safety guidelines and to have a trained professional supervise the experiment.