How a Tiny Current Starts a Big Motor: Magnetic Effect of Current | Textbook to Workshop 03 #Shorts
#Shorts
Switch on the current. The compass needle jumps. Switch it off. Gone.
Your Class 10 science book calls it the magnetic effect of current (Ørsted, 1820). In a factory it is the relay: a tiny 5 V current energises a coil, the coil pulls a contact, and a 230 V motor starts. Every machine panel has dozens of them. Motors, automatic doors, solenoid valves and lifting magnets run on the same idea.
🧩 Can you solve it? A relay coil runs on 12 V and has 240 ohms resistance. How much current does it draw? (Hint: Textbook to Workshop 01.) Answer in the comments.
This is everyday work in ISTC's electronics courses:
• Diploma in Electronics Engineering – 3 years
• Advanced Diploma in Mechatronics & Industrial Automation – 4 years
MAKE CURRENT DO WORK.
#ISTCKonnect #TextbookToWorkshop #Physics #Class10 #Electromagnet #Relay #Electronics #Mechatronics #ISTC #Chandigarh
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