![Using an electromagnet, you can make a working model of a railway signal as shown in figure. - Brainly.in Using an electromagnet, you can make a working model of a railway signal as shown in figure. - Brainly.in](https://hi-static.z-dn.net/files/dc0/758c00e3ecb1501ee272fea3062ede24.png)
Using an electromagnet, you can make a working model of a railway signal as shown in figure. - Brainly.in
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GS-41- RAILWAY SIGNAL - ELECTRO-MAGNETIC BASED / SCIENCE PROJECT & MODEL - Science Toy - Melodys Hobby Centre, Janakpuri District Centre, Delhi,
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